1: Step right in cement mixture (9)
6: When Eve rued core? Not once! (5)
8: Exchange concealed proprietary knowledge (5,6)
9: Help found in Adelaide. (3)
10: Art and Fred, horsing around, draw up new plan (7)
11: Upright drunk's interjection interrupts the others briefly (7)
12: My gal talking to Italian at the table? (5,8)
13: Modernise rear, in the opinion of escort (5,2,2,4)
17: One might be uplifted if a cockney spoke of arts such as opera. (7)
20: Dinner trousers get sodden at drinks. (4)
22: Difficult book about Baltic currency (11)
23: West's last: bottom spade, perhaps (5)
24: Form of address valued for the auditor taken unawares (9)