5  Finally, lunar eclipse affected Shakespearian (8)

 9  See 1

10 Find fold (4,2)

11 Poet's shifty dealer hangs around part of a hospital (6,4)

12 See 1

13 Beyond E.U. regulation, it’s never observed (8)

16 Cheap literature – it’s the source of a lesson? (6)

17 Get on when setter returns 2’s ruff, say (6)

19 See 1

21 See 1

22 As fast as the S-car goes, it’s said? Not very fast (6,4)

25 Tee-off shot is sweet (6)

26 See 1

27 Sled aces crashed, having come down in the world (8)

28 See 1

 2  Badger canine (5)

 3  Oasis, perhaps - a musical alternative (5)

 4  Clearly dull and icy conditions (7)

 5  Stoner crumbling dope that’s nearly finished (7)

 6  Exterminator’s equipment uses tartar sauce laced with poison, to begin with (3,4)

 7  Beer brewed in a basement - recipe wanted brains, in part (9)

 8  Auctioned off letters? (9)

14 First successful record (6,3)

15 See 1 Across

18 Impassioned sorts of skiers tumble at beginning of slope (7)

19 Pressure on public transport, extremely large crush (7)

20 Fruit and nuts à la mode (7)

23 Cut standard edition (5)

24 Said to hold tongue (5)