1: They teach large groups of swimmers (7)
5: Sounds like everything: a bore (3)
7: Worthless even when recycled (3)
9: 'Pops' is very unhappy in retrospect (5)
10: Dont restrict as much when open-ended (9)
11: Insured copter Ted crashed (9)
13: Michael Caine, first outspoken host (5)
15: Small drinks for each young man's agent (11)
16: Odds of niece being born (3)
17: 23% of Scandinavians backing leaders (3)
18: Weapons in a womans speech (11)
20: Snoopy, no? Yes, in retrospect (5)
21: Gambled on wicked stunt-man (9)
23: Sounds like I hit it into orbit (3,6)
27: Quick thrust giving a little nudge to sled (5)
28: Neither's partner participated in an orchestra (3)
29: Animal hiding in abattoir (3)
30: Bivalves? I thought you said biceps (7)