Fabric: hers came to bits! (8)
I believe the answer is:
cashmere
'fabric' is the definition.
(cashmere is a kind of fabric)
'hers came to bits' is the wordplay.
'to bits' indicates an anagram.
'hers'+'came'='herscame'
'herscame' anagrammed gives 'CASHMERE'.
(Other definitions for cashmere that I've seen before include "Soft woollen fabric" , "High-quality wool" , "Soft fabric made from a goat's wool" , "A schemer in expensive wool" , "See charm (anag)" .)