5  End of spear missing a wild beast (6)

10 When rude theatre turned blue (5,3,7)

11 Scientist right about old guide (7)

12 Bang end and hurt nuts (7)  (7)

13 Despite everything being detailed, concept failed in the end (8)

15 Businessmen overheard double-cross (5)

18 Badge from Maine small child brought back (5)  (5)

20 Careless type half-cut in hospital department (8)

23 Pest controller and trampolinist, maybe (7)

25 Found back in same rut at summer's height (7)

26 Given equal billing, finalist wins over another taking drugs (4,3,3,5)

27 Clear backing to protect the hedge (6)

28 Little boy catches bug (8)

 1  Spring a leak (6)

 2  Swimmer's wine order written up with hesitation (3,6)

 3  Muddy like lake? (7)

 4  Encountered headless woman in chemical compound (5)

 6  Found hiding in simple surroundings, America toppled ruler (7)

 7  A quietly concealed bug (5)

 8  Tax collector's admitted to a gentle touch to change image (8)

 9  Society gets a load of samples (8)

14 Form sore about a lecture (8)

16 Anger about trip cut short in train (9)  (9)

17 Having small growth drained after objections raised (8)

19 Grim experience that's bad eating place for truckers (7)

21 A secret's said to have been of benefit (7)

22 Physicist's original model working (6)

24 Spill out of bed before class (5)

25 Frenchman turns up for rave (5)