Cryptic crossword - The Scotsman 16/12/2011

Across

8 Dip flute which has been wrongly raised (8)

9 Compels performance of former deeds (6)

10 Novel crochet used in dressmaking (6)

11 Ice Ages in Scotland caused by volcanoes? (8)

12 Cultural unit expressing cult of the individual (4)

13 Leave drive (3,2,3,2)

15 Get tight and make a hash of it (5,2)

17 Ref gets mixed up in orgy of counterfeiting (7)

20 Do those oppressed by coastal development in Aberdeenshire make mistake at bridge? (10)

22 Sold yarn with wool dye by one dyed in the wool (4)

24 Skill delivers the goods such as marbles (8)

26 Police officer in good position on top of wall (6)

27 Rugged rock originally hidden in den (6)

28 Daughter makes haste to produce Indian rugs (8)

Down

1 Each flan is in champion position (6)

2 Separate doctor is stationed on island (8)

3 Hard-wearing clothes could be one’s forte (6,4)

4 Teach Edinburgh University cadet when converted (7)

5 Shade reported in glen (4)

6 and 18 Not be upset when you can understand what’s nice about it (4,2,4,4)

7 and 23 Warden on street with dog rage may present threat to a child (8,6)

14 Invitation to apply for Pope’s crust when crumbled (10)

16 Sorry to go over stock (8)

18 See 6 down

19 Go down next to Polaris? (7)

21 Warded off proud English king (6)

23 See 7 down

25 Heard to lift beams (4)