Knitter's material (4)
I believe the answer is:
yarn
'knitter's material' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for yarn that I've seen before include "Rambling tale" , "Sort of tale" , "Spun thread or wool or tall tale" , "Spun thread; long story" , "Not fully credible story" .)