Brick Trick

Enter the answers to the clues in the bricks in the wall. Every word is an anagram of its neighbours, plus or minus a letter.

1 Metal barrier (8)

2 Travelling on the sea (7)

3 Indicator (6)

4 Informal speech (5)

5 Unforeseen obstacle (4)

6 Neither solid nor liquid (3)

7 Shade of green (4)

8 Brand of lemon curd (5)

9 Sharp-eyed large birds of prey (6)

10 Groups of football divisions (7)

11 Central body of an aeroplane (8)