6  Post books back for estimate (3,2)

 9  Alternative to Swiss vegetable's a growth area (7)

10 Let go of pawnbroker with no grasp of English when taking first of pledges (7)

11 Strategy of aged men perhaps (7)

12 Grass cutter's rumoured by some to be commonplace (5-2)

13 Dawn has seedy, seedy time (9)

15 Twig that old Bob's a prude (5)

16 Go on to find some havoc curiously (5)

19 Humble man's wearing fur, perhaps this (9)

22 Cad's hesitation before and after mistake (7)

23 Smashed plot involving revolutionary Iran (7)

25 Prodigal son leaving swine behind resettled in Florida resort (7)

26 Success when given free rein in carpentry (7)

27 Priest some French cut off (5)

28 Hear why sturgeon at sea produce offspring (9)

 1  Feel King's work's beginning to ease (5)

 2  A duplicate edited edition is submitted (7)

 3  Confused manatee is to come out (7)

 4  Low border (5)

 5  Blindly reproduce brush style (5-4)

 6  Tenor's performances describe one leading character's wiles (7)

 7  Create hospital organisation for doctor (7)

 8  Playing this gives good exercise to the heart, perhaps (4,5)

13 Healthy in full measure (9)

14 Free spirit small girl's to symbolize (9)

17 Essential run down upset mandolin owner (7)

18 Train receipt Archdeacon swapped for loaf of bread (7)

20 Gilding Roman found in Portugal (7)

21 Dreadful skit about nudie oddly is the most agreeable (7)

23 Small round sail's erected on boat? (5)

24 Doctor and philosopher lack one piece of equipment (5)