Cryptic crossword - The Scotsman 23/03/13

Across

1 A valve to move slowly if absolutely necessary (2,1,5)

6 Stiff soldiers, European (6)

9 A pick-me-up had not been stressed (6)

10 Statesman involved in camera exchange (8)

11 In the team a hospital nurse (4)

12 Principle alien greeting civic leader (5)

13 Brad, one taking nothing round (4)

14 Facing (13)

17 Romeo does not start to add detail, it’s too complicated (13)

20 Beefcake oddly found in stream (4)

22 One in charge of keeping the country straight? (5)

24 One going round about five can be found in the kitchen (4)

25 I know Philip first said to be one from Manila (8)

26 Look at Ireland, say, from these mountains (6)

27 Pair leaving get on with monster (6)

28 Central shopping area in Bangor perhaps (8)

Down

2 Idolatrous motet composed, number 99 (7)

3 Flat on top (9)

4 Hot during pleasant recess (5)

5 Then he might have included a pagan (7)

6 Increase in noise during disorderly soccer round goal (9)

7 Prevail over some more ignoramuses (5)

8 Dividing garnish out (7)

15 Chief planner definitely has mental faculties (3,6)

16 Mention about 10 across appearing very soon (2,1,6)

17 Beginning with vacancy (7)

18 Considering everything as nobody is kept in the dark (3,4)

19 It can be raised in surprising circumstances (7)

21 Blade from potassium, nickel and iron (5)

23 Stitch again whilst river in Germany is rising (5)