5  Circuit set to improve computer (6)

 9  Showgirl covering her extremities in film (8)

10 Burning a jacket that's too short (6)

12 Place for organ bank? (9)

13 Painfully crammed parts into this? (5)

14 This potter's wheel finally installed (4)

16 Cultured chap, slippery customer (7)

19 Poles piled into characteristic vehicle (7)

21 They row endlessly, somewhere in Cheshire (4)

24 Tree more thin on top, with nothing at the front (5)

25 Level output from factory (9)

27 Artist arrived at when taking in the last symbol in Scrovegni? (6)

28 Battle later acted out in court (8)

29 Fashionable spots round outskirts of Karachi (6)

30 One's not used to mobile phone yet (8)

 1  Steel, or sound of its type? (6)

 2  Fought son over treasure (6)

 3  Extreme quiet needed for oral gymnastics (5)

 4  It creates solutions of outstanding quality (7)

 6  Wield a mean club? It could put you in hospital (9)

 7  Chart the demise of this leader (8)

 8  Foremost of puzzlers, the Vicar's unwell, but lives on (8)

11 Gumshoe? (4)

15 Girl holding well-worn ritual before going out? (4,5)

17 Curiouser and curiouser: grants given to the Queen (8)

18 Spooner's players catch companion (8)

20 Chase rabbits at Lord's? (4)

21 Church or alehouse, has place for some singing (7)

22 By holding sway, it's useful in the shower (6)

23 When hero's at sea? The opposite! (6)

26 Drop litter with ease (5)