21a. illegal alcohol featuring in 'Chattanooga Choo-Choo' (5) H?O??.
24a.water, from the auction of Ardnacrusha or Aswan?(5.3) A?A????E.
22d. get the party-thrower a flower(5) ????A.
23d. near the swiss, one finds a longford youngster(5) C?I?D.
many thanks for assistance.