1: Without a bit of Retin-A, stops wrinkles (7)
2: Chewed-up gum in tater -- how toothsome (5-8)
3: Little Mermaid's voice overhead (5)
4: Small crewmen back rockets (5)
6: Peculiarity of family repeating letter (9)
7: Otherwise angered by a fencers call (2,5)
9: In the beginning, the first persons found Latin confusing. (7)
10: Devil and saint share presentation (13)
13: Gambled on wicked stunt-man (9)
14: To be groovy, must not be left off. (5, 2)
16: Supporters, but not for long (7)
18: Imposing put our nose out of joint (7)
20: One who gets up part of stairway (5)
21: Crazy Sadie's notions (5)