1: Digs up former chambers containing origins of ancient temples (9)
6: Demand payment? Just so! (5)
10: Complain about the horse (3)
11: A girl in distress, sought by knights (5)
12: Fittingly, use following heart transplant (5)
13: Going unknown after damage to accord (7)
14: 50 snakes' scales (7)
16: Storey's fantastic seafood (7)
17: Essay about one mathematical function in three volumes (7)
20: Lion devouring poor shot in part of Africa (7)
23: Ran, taking a shot, and told the story (7)
25: Certain tests of integrity after losing face (5)
26: Is next to a total bust (5)
27: In the manner of a girl (3)
28: Capone frequently gets high (5)
29: Assistants' crackpot ideas (5)
30: Dairy stock entails wrangling around 2000 (9)