Cryptic Crossword - The Scotsman 02/04/13

Tuesday’s puzzle...

Across

1 Holds forth on how to work out decimals (8)

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The i newsletter cut through the noise

5 Sharper ears, perhaps, are cut off (6)

9 Wind speed above ground level? (8)

10 Spoil Ronald with sweet chestnut (6)

12 Boasted of including original extremists in mob (6)

13 Carol takes time to see rock musician (5)

16 Park at stretch of water in Ireland to carry out agricultural work (6)

17 Agreement reached on The Ring, a musical composition (8)

20 Takes another sample when tests are revised (8)

21 Keeper of Churchill’s secret bunker, perhaps (6)

23 Protective covers thrown over fish (5)

25 Pop a question about something that’s far from clear (6)

28 Trial of alternative arrangement (6)

29 Tranquilliser given when deviates go crazy (8)

30 In letter after letter elucidates charms (6)

31 Virtual dog, for example, may creep by falteringly to get to bone (8)

Down

1 and 2 Qualifying document that’s expired is bound to happen (4,4)

3 Vegetable fed in answer to Wells, say, taken with invert sugar (9)

4 Birds that Scotsman wows, we hear (6)

6 Jackets put on by company of women in the army (5)

7 Will pitch be heard to debase slow-moving creature? (10)

8 Stranded when managed Easter Road, for example (3,7)

11 It’s goodbye to walkie-talkies that don’t start (5)

14 Nearly unpack provisions for programmes (10)

15 Assemble to bid for, eg, pedestrian crossing (10)

18 Catalogue sent out by clot (9)

19 Notes written up about East Lothian port (5)

22 Uncertain, the French desert station (6)

24 Come to a sudden stop in theatre seat (5)

26 A thlip of the tongue? (4)

27 Reported to be solid place for badgers (4)