Brickwork

Enter the solutions to the clues in their numbered layers of the wall. Each word must be an anagram of its neighbours, plus or minus one letter.

1 Attribute to, credit 2 Straps worn over a shirt to hold the trousers up 3 Log tossed at the Highland Games 4 Sea crustacean 5 Train carriage 6 Killer whale 7 Thespian 8 Orange vegetable 9 Farmyard vehicle