1: A small vault is said to be round about the rail support (7)
2: Schoolchildren made to come back on Saturday make mistakes (4-3)
3: One-time philosophical teaching turned him to classics (13)
4: Curse the watcher hiding terrible evil within. (3)
5: Buddy goes red in the face, or reddish (5)
6: Swimming-pool man to take off? (7)
8: Freshly pick up select book on top (7)
9: I'll go geld guys - suprisingly he laughs raucously. (7, 6)
14: Discompose each half of turbines (7)
15: Boys terse brief for pearl producers (7)
16: Star first overhauls top landholding, bolstered by French capital (7)
18: Will recipient member stand on one support for the ball? (7)
20: Castro led, granting that uprising (5)