1: Trainee repudiates closing plant? (5)
4: Cry at nothing and hope to be only slightly cowardly? (9)
9: Pitchers were transported south (5)
10: Knock out acrobat's last daring feat (5)
11: Arcking shot from Bill O'Brien (3)
12: Dolly led runt astray (7)
13: Ingrained reaction at home for wildlife (7)
14: One of a pair will turn around nothing, all right (7)
15: Cocktail dress taken up with skill (7)
18: Mary gets back to business running building trade (7)
20: Franklin eager to conceal paternity (7)
22: Separates 100 sheets of paper (7)
25: More up-to-date way for Oscar to greet Felix? (7)
27: Encourage horse led with direction. (3)
28: California has an artificial waterway (5)
29: Rabbit (male) with nest of bunnies? (5)
30: New Moslem art depicts turbulent situation (9)
31: Calls for lemon and mustard, losing zero weight (5)