Before revision: A craftsman called a fuller (also called a tucker or wa[u]lker ) cleaned the woollen cloth in a fulling mill, and then had to dry it carefully, to prevent the woollen fabric from shrinking.
After revision: A craftsman called a fuller (also called a tucker or wa[u]lker , in Celtic , (from the word 'Walker', as used in most of the UK mainland), cleaned the woollen cloth in a fulling mill, and then had to dry it carefully, to prevent the woollen fabric from shrinking.