4  Wash mouth out with some vinegar gleefully (6)

 7  Deal with lawsuit (6)

 8  Put back in postbox and show indignation (6)

 9  Part of teriyaki rib at imperfect state (8)

12 Stick flying mammals up (4)

13 Comprehensive fees gathered together for highways (13)

16 Pay for day of enjoyment? (4)

17 Experimental glassware trial on the Underground (4,4)

20 Market sounds fantastic (6)

21 Impress one with new way leading to uptake of lithium (6)

22 Covering points in career (6)

23 Looked at manufacturing trades (6)

 1  Little Elizabeth hugs limp bedding (7)

 2  Audibly criticise substitute teacher (5)

 3  Heartless mob after Greek character’s diamond (5)

 4  Decorates Royal Navy infantry leader covered in wounds (9)

 5  Unwilling to put away train sets (9)

 6  Track date's origin (7)

10 Dirt area I stupidly expose to uranium, say (9)

11 One playing away developed hesitation upon hesitation (9)

14 Room in the auditorium with oddly angled drawing (7)

15 Perceived me and left riding toboggan (7)

18 It's an article of faith, whichever way you look at it (5)

19 Mention golf club has no head (5)