Across 4 Diatomite from wrecked hulk is green but nameless (10) 12 Ols secret police inspector, some say (5) 16 Island is rough for cars, too (7) 17 Shorts badly holed, seen to cover rump minimally (10) 18 Sound advice - duty is required from property owners (7,3) 19 A second look at something? (7) 21 German half-back? Nonsense! (4) 22 Variety act performing to arouse one's desires (4,2) 24 Powers of being good? (7) 25 Times are looking up! (3) 26 Wilde's first acting award (5) 27 Universal cry after last words give a lifting effect (7) 29 Cunningly save up four, see? (9) 32 Mouse to owl - I beg you to listen (4) 34 Crossing Maidenhead, a solitary social worker (7) 37 Rising corrosion is added to woe in shtetl-speak (6) 38 "Turn it off, dear" incurs an angry speech (6) 42 Got lost, yet remained right inside (7) 45 Old skeleton - a cat with the male chromosome (5) 46 Stage comic appears in this too, generally (6) 48 Go on without one, patently amused (5) 51 Rex leaves quickly to make the sauce (5) 52 Behind, in the main, like a bird (6) 53 Utter rubbish! That's where you should go in! (5) 56 Like those effete Romantiques - a number on pot, say (7) 57 Shown again for a second attempt at execution? (6) 58 Unpleasant feeling from angina - use aspirin (6) 59 Exercise books on the French rock formations (7) 63 About half a gallon - could be more (4) 64 Event in the desert cleans hill and mountain top (4-5) 67 Sectarian, one into unarmed combat (7) 69 Started a bloomer (5) 71 It's work, therefore nothing will come below it (3) 73 Book receipt for the Queen, perhaps (7) 77 Greek character needs a doctor, one figures (6) 78 A country international leader controlled (4) 79 Menus, perhaps, thanks to Berbers (7)

80 As company manager, I am in favour of keeping oriental dress (10) 81 Simenon's bureau, for example, with its back to the wall (10) 82 Disposed to be angry as one's given African coin containing copper (7) 83 King of the Amorites, shone erratically (5) 84 Advancing years of a girl, nothing to do with skirt-length (4,6) Down 1 Where to see a one man race? (5) 2 Silly fool to treasure wooden spoon (5-5) 3 Call "heads" in Boat Race (6) 5 Start off more spiteful, becoming rather irritating (7) 6 After work, retire to a hot country (7) 7 Disguise a lust for good health (5) 8 Some mistresses trussed to the bedframe create sexual arousal (6) 9 Plain man sends everything up to emperor (7) 10 The upper-class come to eat in this Italian town (5) 11 Epoch making flight made years ago across the desert (6) 12 Imitation goods on which decoration may be junk? (11) 13 Where to live - a pun on them is material (5) 14 Spot small English mole (4) 15 Nurse may require treatment for arterial trouble (8) 20 Soviet leader left in disgrace (6) 23 Shakespearian hero holds a pen, but not now, of course (4,4) 27 At university to get first in philosophy? Turn your eyes skywards! (2,3) 28 Puts the little pet outside when it is troublesome (5,2) 30 The drug has no right turning up in meat (7) 31 Appearing maturer could be a mistake (7) 33 Scholar returns maths work on time (7) 35 Fail to locate row, being more obscure (7) 36 When students have fun, several days after taking paper (3,4) 39 'After the scole of Stratford **** Bowe' (Chaucer - Canterbury Tales) (4) 40 Blackmore's family, fairy-like, commit suicide (2,7,2) 41 Call-up date wrongly issued (8) 43 A high point in history (3) 44 Very attractive girl on the quiet (4) 47 Steepest part found on the golf- course (3) 49 Figure not quite reaching C (6,4) 50 Animal turns tail in Ethiopia (5) 54 Mountains entered by worker in passages at a slow pace (8) 55 A US air composed for lizards and the like (6) 60 Flowered, it would appear, in the plot (7) 61 Romance in a long dress was said to have finished Mozart (7) 62 Sinatra turned out a man of skill (7) 65 'Nymph, in thy ******s be all my sins remember'd' (Hamlet) (6) 66 Bed-hopping female gives pseudonym - phoney one, in part (6) 68 He was a legendary high-flyer, but he couldn't take the heat (6) 70 'Dum *****, spero' (While I breathe, there's hope) (5) 72 Smile, eating a cereal (5) 74 Sailor on edge, unable to take any more (5) 75 Radio definitely contains semiconductor device (5) 76 Curve of tree, with top lopped (4)