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 Speech impediment 2 Become very proficient in, or defeat 3 Astute, or fashionable 4 Public transport 5 Upper limb 6 Wander 7 Landed estate 8 Purplish-red colour 9 Uniformed attendant at a hotel entrance