Many thanks, Horseley for that final push - the exception has been noted and is very much appreciated.
I see there are some 20 definitions of “crook” in the English Dialect Dictionary but the third one seems the most relevant with: "an iron hook and chain suspended in a kitchen chimney, on which the cooking vessels are hung over the fire". We live and learn! By the way, I presume that Ligg'd can be read as Legged.