4  Group, after getting to grips with sport (American), all come back in stitches (7)

 9  Heartless batsmen eat out causing interruption of action (9)

10 Mad axer carrying the head of Thomas More (5)

11 One loathes mischief amongst personnel (5)

12 Milliner in play area rebuffed idle gossiper (9)

13 Astrid and I played the recorder (7)

15 Central group of Parsees returned to guard the Jewish queen (6)

17 Irregular haunts for Mormons? (6)

19 Live donkeys and squirrels (7)

22 Italian author is involved in the department to decrease spending (9)

24 Best of the Pre-Raphaelites (5)

26 Picture supplement that’s in circulation (5)

27 Impertinence causes sin in another way (9)

28 Enzyme production is perennially held back (7)

29 Not really in harmony having succeeded breaking alliance (6)

 1  One remains between the sheets in a state of embarrassment (7)

 2  Old lover gets something done? Absolutely correct (5)

 3  Swimmer fears getting tangled with ship (8)

 4  I was seated on top with a note to convey stuff (8)

 5  Dose floozie up with injection of ecstasy (5)

 6  Enter and observe upstanding people coming back home? (9)

 7  Flight taking one into the Milky Way? (6)

 8  Old hipster, English, falls in slippery patch (6)

14 Old navigational aid for a short amble to Lincoln (9)

16 And I acting crazily with great McGonagall was dubbed poet and this (9)

18 Dons quickly acting to support brass on board (5,2)

19 Archdeacon dressed in gold lamé finally makes an entrance (6)

20 A family member treads under foot? (7)

21 Born on English Channel (or next to) (6)

23 Old writer faces son and starts to bid (5)

25 It takes little energy writing articles (5)