Across

4In shady schools, arteries are liable to develop this disease (15)
16Touring Spain, start off garbling Spanish and gradually make progress? (5,2)
17Crazy relatives might slip on it (6,4)
18Encouragement to Miss Bell, having fallen off her bicycle (4-1-5)
19Might the artist unearth how one might get caught up in it with competition? (3,4)
21Quick - get inside for a bit of fun! (4)
22Man who attaches a stone to a bird (6)
24Court has a thousand year period to find Australian rocket centre (7)
25A letter from Redhill (3)
26US native pigment (5)
27Near injury on railway not down to increased speed (5-2)
29Taking initiative to demonstrate about start of play (9)
32Sure standard (4)
34More level-headed letter from Sir Garfield expressing hesitation (7)
37The first to reach a sporting conclusion (6)
38We hear Charles has a riding boot (6)
42North American bird first found in Italian city (7)
45Put oil on an eel that has been prepared (5)
46Like bears and lemurs in every part (6)
48Everyone leaves, the rest is gone! (3,2)
51Seductive hooter? (5)
52Rock sounds quite good (6)
53She gets up when others have put in an hour's work (5)
56One impression of literary work (7)
57Group to be followed by UEU (6)
58In vacation I anticipate learning some Greek (6)
59Star workers are enlisted (7)
63Old Testament character in the Bible - a Hittite (4)
64Unlike the small print, it's very obvious (4,5)
67Put an end to rubbish being dumped in the entrance (7)
69G.O.C. in unrecognisable guise (5)
71Mark is almost forbidden (3)
73In the broken case the fliers find bottles (7)
76Navy prepared a drama (6)
77Came across a river in Colombia (4)
78Backing nothing in a measure? It's a rhetorical question (7)

79Tone is grey but it masks a large- hearted nature (10)
80Pioneer of the round cruise (6,4)
81Crafty play inside cover with a floater on the pond (4-3)
82Hurry to start cooking fish? (3,4,6,2)

Down

1Notice bankers' orders, it's said, in random audits (4-6)
2Completely, in hardly three- quarters of an hour (10)
3Smoke, being in a state, and fill a glass perhaps (6)
5Caddies giving golfer's peg some stability, they say (7)
6Pelt American all round the ring - that's sickening (7)
7Get ready for battle - Marne, maybe (5)
8Poured water for a diner possibly? (6)
9Remove the back of the Sunday newspaper and watch attentively as a result! (7)
10Some dough not used in the common era (1-4)
11Strange ordeal on the Rio Grande (6)

12A rat, I notice, can be made to think logically (11)
13He recorded a hit in Hamlet (5)
14Stake almost lost in card game (4)
15Poles always exhibit some hesitation - safety first, they scoff (8)
20Ingenious Conservative means of exerting pressure (6)
23Native Americans, a writer born in France on the First of September (8)
28Nothing advanced in father's porridge (7)
30Someone whose work is literally improving? (7)
31In destiny blow up when there's a learner in (7)
33Indian in Antigua ran island (7)
35A process of neutralising the yellow? (7)
36Concerning one, two or three points, for example (7)
39Low joint keen to be reformed (4)
40Fabric - chap one-third darned, then left area with hole (6-5)
41Salt taking a last-minute drink inside (8)
43Initially any short-witted simpleton (3)
44Rests with Milton in the last resort (4)
47Right one's round S. American city (3)
49Take Oxford course (a bit of Browning?) for a jaundiced view of America (5,5)
50Where John Brown got recognised by flower of Scotland (2,3,5)
54From whence a new New Zealander? (5,3)
55Temporary sanctuary for fighter in tricky situation (6)
60Exotic walk of an unconvincing lawyer (7)
61Fairs in South Africa arrange hunting expeditions (7)
62Musical effect that could give you a lot more (7)
65Not Red Indian chiefs (6)
66Chancellor finds trademark on shirt (6)
68'The Mikado, or the Town of *** '(W,S. Gilbert) (6)
70Improve on alfresco entertainment (5)
72Singer holds one as first principle (5)
74New deal on English girl (5)
75Make officer a fool (4)


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