Made from sheep hair (7)
I believe the answer is:
woollen
'made from sheep hair' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for woollen that I've seen before include "Made of sheep's fleece" , "Made from fleeces" , "Knitted garment" , "Fabric made from the hair of sheep" , "soft and warm" .)