1: Large strumpets turned a trick? (9)
2: Retinue and company again go round, get back (7)
3: Logical oil Polish chap applied (13)
4: Extend a term of imprisonment (7)
5: One final, huge Greek goddess (3)
6: Bouquets of flowers, freshly opened (5)
8: San Francisco athlete captures wild boar, an obvious choice (2-7)
10: Ellen, golf wife, creates a sense of joint interest (6,7)
13: Old file is destroyed in valuable Arab lands (3,6)
16: Slippery deck spots are on either side (9)
18: With reference to above -- Phys. Ed. Department has renewed contract (7)
19: Magician's handy craft of little importance for the auditor (7)
20: Small feature role has arrived, love (5)
23: Hear Native American appeal (3)