Cryptic Crossword

Across

1 Gather in prayer (7)

5 Set pop singer to oppose sportsman (7)

9 Debris found at site of glacier or in eastern state (7)

10 Engineers in team raised to higher power (7)

11 Socialist vehicle takes favourite as sign of esteem (3,6)

12 Hard stuff composed of strong soft stuff (5)

13 Communication system brings power to island (5)

15 Elements are shaped into weapon (9)

16 Come into Highland town to hold a party, perhaps (9)

18 Inspiration of sound looking after harmony etc (5)

21 Knowing where to go? (5)

22 Dance a lot? Nonsense – it's just a story (9)

24 Problem with idol draws line in the sand (7)

26 Girl in old court would do too much (7)

27 Princess's faction to split up (7)

28 Second last alternative direction (7)

DOWN

1 River ages under surveillance instruments (7)

2 Drill you heartlessly churned out in gruesome fashion (7)

3 A girl I care about (5)

4 Behave badly towards rest somehow, and once more ignore on the street (8,7)

5 Promote some stationery to demonstrate innovation (4,3,8)

6 Letter from Greece – thanks to you, it's said (3)

7 Brave girl taking one drug after another (7)

8 Fruit in underdone condition taken out again (7)

12 Debate on behalf of Manchester University (5)

14 Possibly a lyre bird catches worm (5)

16 Former religious blushing when run out (7)

17 Trust first couple to sort out Sybil's hats (7)

19 Establish just how to predict good weather (3,4)

20 Celt out, prancing about in divided skirt (7)

23 Fear to study under democrat (5)

25 Line up, we hear, to strike the ball (3)