1: Penniless meal is fantastic (5)
4: Defective gas meters for people who take chances (9)
9: Start reducing salt? (3)
10: Trashy dime novel about American sex symbol who's not all there? (5,2,4)
11: Mystic eats piece of donut in ritual meal (5)
12: Very brave, Dorothy's starting without Em perhaps? (9)
13: Stop-Go see funny type of march! (5,4)
15: Discussed one who broadcasts mistake (5)
17: Whacked repeatedly in the ear (5)
19: Over 24 hours, Parisian street may feel remorse (3,3,3)
22: Beneficial to lose funny inside. Who? Me? (9)
24: Common thread uniting New York and half of London (5)
26: Cereal vermin seized by superb 16-down (11)
28: Later round without an opponent (3)
30: Reborn near different perfume (9)
31: Nasal quality essentially irritates Vera (5)