Cryptic crossword - The Scotsman 17/08/15

ACROSS

8 Rues having to moon about when colossal (8)

9 Managed to get boy into a rowing-boat, amid uproar (6)

10 Work of note in person, at any rate (6)

11 Had the wrong tie, back on Sunday , apparently (8)

12 Does smoking bear no relation to dangerous air quality? (4)

13 Rule out a trite form of creative writing (10)

15 To some extent accept principal can be causing chaos (7)

17 Works one’s way up when club closes (7)

20 Find rust twice spoiling church buildings (10)

22 Book someone into meeting rooms (4)

24 Braces oneself for attacks over low marshy ground (8)

26 Maintains, over time, that one fends others off (6)

27 Using second lade, initially, turn hard water into a floodgate (6)

28 May finish up, in the end, totally surrounded (8)

DOWN

1 Tell those in the class they are doing very well (6)

2 Noted organiser had the choice of entering a luxury car (8)

3 Is in favour of everything that follows, nonetheless (3,3,4)

4 Pilots steer small convoys, in the main (7)

5 Worry about getting loose, lacking energy, on time (4)

6 In diplomacy, stick together in one piece (6)

7 Warn, indeed, about having gone astray (8)

14 Although at one small screen, managed to provide opposition (10)

16 On the small size, but not by much (3,2,3)

18 Cut short means of access to drug in a bonded warehouse (8)

19 Urged journalists to get the first two editions (7)

21 Dishonest partisan’s crooked, which is uncalled for (6)

23 Carry weight of something material, in fact (6)

25 Is still stuck in the Seventies (4)