Change, perhaps, bare fabric (8)
I believe the answer is:
cashmere
'fabric' is the definition.
(cashmere is a kind of fabric)
'change perhaps bare' is the wordplay.
'change perhaps' becomes 'cash' (change is a kind of cash).
'bare' becomes 'mere' (synonyms).
'cash'+'mere'='CASHMERE'
(Other definitions for cashmere that I've seen before include "'Fine, soft wool from a goat (8)'" , "knitted garment" , "Expensive material" , "Soft fabric made from a goat's wool" , "Fine wool for a schemer" .)