Fuzzy sweater material (6)
I believe the answer is:
mohair
'fuzzy sweater material' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for mohair that I've seen before include "Fibre got from goats" , "Angora fleece" , "Fabric from coating of angora goat" , "Cloth made from wool of angora goat" , "Fabric made from the coat of an Angora goat" .)