1: Height is equal to three-fifths of the first one (3)
3: Stimulant produced as choir paid off (11)
9: Without a bit of Retin-A, stops wrinkles (7)
10: Come before chief of police, and back off (7)
11: Road leading into dismal swamp (5)
12: Charmed - then dance about (9)
14: Agrees that a course should be forwarded to the primary school (7)
15: God! Get real! There's no point getting upset (3)
16: Clothilda is carrying a parcel (3)
18: Pauses awkwardly after error but steadies nerves (5,2)
22: Persuade you to buy low-cal, so to speak, for unsightly fat (9)
23: Reject the upset outcast (5)
24: The ex-President's back; time to withdraw? (7)
26: Rip male off for money in Honduras (7)
27: Goes through ere sixpence circulates (11)
28: Call for help oddly stops (3)