1		Boston-set US sitcom makes one happy (6)
5		Swift's traveller's a sea-bird at first (8)
9		Writing's on the wall for this street art? (8)
10		Speedy actor's assistance (6)
11/8		Lloyd-Webber musical has big name actor, not overweight and very quick (9,7)
12		Hears about actress Jane (5)
14		One who carries US composer/lyricist (6)
16		Perhaps Mars next for German Dadaist/Surrealist (3,5)
18		Hate Bury transformed as location of annual Wagner festival! (8)
21		Astaire/Rodgers movie that could go to your head? (3,3)
23		Goethe's 'soul- seller' is quick to grab university's head (5)
25		London theatre's where to buy horse feed? (9)
28		French Impressionist in Montmartre? No Ireland (6)
29		Could be Fiona's in small orchestra (8)
30		Perhaps the 'Eroica' is mostly fake to Americans (8)
31		Spring holiday cry for help? (3,3)

2		Fictional seafaring hero's contribution to Soho rations (7)
3		Author's former set broken up (1,1,7)
4		Genre of literature stored in disc if invaluable (3-2)
5		Best-selling US author has flipped in dismal surroundings (7)
6		Those of a 'Mash' character were hot (4)
7		Small religious paintings often seen on computer screens? (5)
8		See 11 Across
13		Where you head for at the end of a show? (4)
15		Michel and Albert, French saucy TV chefs? (4)
17		Type of theatre company that's somewhat aware, pert or youthful (9)
19		Society promoting the arts is captivated by facade (Mycenaean) (7)
20		Rumour: the man has a right to speak (7)
22		Country song from 'West Side Story' (7)
24		Pick up a book by Evelyn Waugh (5)
26		Musical note, in form inimitable (5)
27		Performing group's short time at S. American city (4)