18d) Staggering feats at end of runway get protection (6) ?A???Y
22a) Charge at speed foolishly covering miles (8) ?T???E??
23d) Chap runs out of one supply of water (4) ??I? -is it Main?
24a) Memorable introduction to Cowes - yacht's wrecked (6) ????H?
25d) Uninspiring mincemeat (4) ??M? -is it tame?
All help greatly appreciated.