Woollen fabric (4)
(Other definitions for flannel that I've seen before include "nonsense" , "something to wash with" , "Bathroom item" , "One way to rub clean" , "type of fabric" .)
(Other definitions for worsted that I've seen before include "sort of suit?" , "taken to the cleaners" , "Stuffed" , "Set word (anag.)" , "stuff" .)
'woollen fabric' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for tweed that I've seen before include "passes between English and Scottish banks" , "Flow" , "Running water" , "Sort of jacket" , "Fabric; river" .)
(Other definitions for felt that I've seen before include "Touched the matted fabric" , "Sensed; fibre cloth" , "Soft fibrous material usually under carpet" , "Laid hands" , "examined by touch" .)