Ready to introduce simple woollen fabric (8)
I believe the answer is:
cashmere
'woollen fabric' is the definition.
'cashmere' can be an answer for 'fabric' (cashmere is a kind of fabric). I am not sure about the 'woollen' bit.
'ready to introduce simple' is the wordplay.
'ready' becomes 'cash' (ready can informally mean cash).
'to introduce' is a charade indicator (letters next to each other).
'simple' becomes 'mere' (synonyms).
'cash'+'mere'='CASHMERE'
Can you help me to learn more?
(Other definitions for cashmere that I've seen before include "A schemer in expensive wool" , "fine cloth" , "Fine wool for a schemer" , "Product of fleecing operation" , "Woolly stuff" .)