Cryptic crossword

ACROSS

1 When on parade, decorates areas on board 1 down (9,5)

9 Suffered failure, in spite of group support (7)

10 Work up tribute, with respect (7)

11 Comes round to dine, was forced out, and cut corners (10)

12 Did phoney imposter forge copy? (4)

14 Wins a little time, yet influences by underhand means (4,2)

15 Confuses stupid son having to run away (8)

17 Liberator may be about to judge, with little hesitation (8)

19 Dwarf plant growing in Lisbon's airport (6)

22 Scramble to run away from offensive (4)

23 Simplify detailed structure with a note (10)

25 Old sycophant in position at branch office (7)

26 Open up with gold, providing diamonds afterwards (7)

27 They can't manage to reach their full potential (5-9)

DOWN

1 Craft used when pressing shapes out (9,5)

2 Letters addressed to a remote settlement (7)

3 Improved comprehensive, by degree (10)

4 Invites son to be wrapped in a coat (4,2)

5 Record one day with me, about one caught up in outbreak (8)

6 Every individual in the teaching profession (4)

7 Sovereignty lost force in family ties (7)

8 For each letter, point to over-indulgence (14)

13 Earlier object is expected, initially, to set things in order of importance (10)

16 A man had mole removed, revealing skin tumour (8)

18 Look down on girl's father, in the end (7)

20 Cast an eye over a small fish at the coast (7)

21 Have to dispose of 1,000 tribesmen hard to follow (6)

24 Bound to get through the same reel (4)