Cryptic crossword - The Scotsman 15/04/13

Monday’s puzzle...

Across

1 Design cell very neatly (8)

5 Old sailor had to achieve his objective ... (6)

9 ...while a popular musician shocks old sailor (4-4)

10 In a predicament on how to barely manage to get by (6)

12 Are players alert when in possession? (2,3,4)

13 Edge along the borderline, going inside (5)

14 Succeed in gaining control over graduate (6)

17 Find scope for some new arrangements (5)

20 Settle on base, able to take son ... (5)

21 ... and settles in deserted springs (6)

24 Small change in an open centre (5)

25 Fence it over, if qualified to do so (9)

28 Is about to take a spade, on intuition (6)

29 Get a bonus to perform at race (8)

30 Pull an empty engine as a bet (6)

31 Trampled all over, at the end, in a rush (8)

Down

1 Transport in operation in case (6)

2 In the past, remember to inspire (6)

3 Proceed to follow two hands, and bring them to court (5)

4 Took a spike back from a climbing plant (5)

6 Inherited 23 down, upset by right, and a left (9)

7 Taking care to picket in good order (8)

8 Move unsteadily, having rocked and rolled (8)

11 In first grade, get open reference (6)

15 Growing tree, etc, on steak, we’re told (9)

16 A top name attracted a merry clown (6)

18 Just try, right away, to get some real estate (8)

19 At the peak, go on board a Central Line (8)

22 Use clear polish for elaborate filter (6)

23 For a second time, get a new engineer to a building-site (6)

26 Insult fellow lecturer in the wrong (5)

27 Have spell as church member (5)