3) A little one able to make you feel the pinch (6) (to rhyme with plough)
6) Spring fete in London (7) (to rhyme with genteel)
10) Unfriendly (7) (to rhyme with Mile)
15a) Business (10,8
15b) The act of excusing (11)
20) Boy---->yob (5,3.) (to rhyme with thing)