6  Starts to drain radiator in plumbing system and makes wet patch (5)

 9  Order to leave cancelled after broadcast (4,3)

10 Poorly judge? (7)

11 Dire? It's a nauseating piece that, in retrospect, is even more repugnant (7)

12 Be meticulous to keep a clear head (7)

13 Howlers made by pupil expunged from bible's racy translation (9)

15 Soldiers tuck into champagne en route to the theatre (3-2)

16 Note by academic fieldworker? (3-2)

19 Genuine in one's illusion (9)

22 Batting's more positive for one prepared to take risks (7)

23 She's thoroughly steeped in her faith (7)

25 Intimidated by wine of a fresh variety (2,3,2)

26 Spooner's headgear provides opening for queen (3,4)

27 Again rally periodically, in the pink? (5)

28 Spooner's confused with news about one out of favour (3-6)

 1  Animal issue could go either way? (5)

 2  Old show house (7)

 3  Tenor enthralled by Beethoven's work - it's rousing stuff (7)

 4  Porky fellow's stuck in river - he won't get out for ages (5)

 5  Injured in some war, he carries on (9)

 6  Sat up guarding knight in iconic exhibition area (7)

 7  Call over some colleagues I met in travelling north (7)

 8  You'll get it if you come out! (6,3)

13 Arranging for reduced dose to be taken in future (9)

14 Build up bonfire in preparation for clearing annoying problem (9)

17 Anguish of old man consumed by endless passion (7)

18 Training ground for old linesmen where they worked round London area (7)

20 Mixed up English team, one short of members? (7)

21 After a couple of circuits the French get frozen extremities (7)

23 Business trapped by embargo may be Danish (5)

24 Easy shot for soldiers put on hold (3-2)