1: Choose to take the top off (3)
2: Coral Sea, perhaps, without a fish (7)
3: Fittingly, use following heart transplant (5)
4: Little singer returned, following band to total a hairy little mother with seating for one. (7)
5: Others acquired skill to turn over a new leaf (7)
7: Watch Obadiah attend to customers (7)
8: Rejecting crew's work on board, you rest at the stern (8,3)
11: Choice bergamot subdues growler (7)
12: Seduce husband-to-be in parlor (7, 4)
15: Walking nicely as a dog's getting well vocalized (7)
18: Duck turning up initially looking like a Walt Disney animated goose (7)
19: Treads for one of the family (7)
20: Try to deny yod is a vowel intrinsically (7)
21: Caretakers for a number of little orphans (7)
23: Discounting all odds, teen assured to succeed (5)