Cavalier poet's fondness for fine fabric (8)
I believe the answer is:
lovelace
'cavalier poet's' is the definition.
(I've seen this before)
'fondness for fine fabric' is the wordplay.
'fondness' becomes 'love' (I've seen this before).
'for' is a charade indicator (letters next to each other).
'fine fabric' becomes 'lace' (I've seen this before).
'love'+'lace'='LOVELACE'
(Other definitions for lovelace that I've seen before include "Cavalier poet" , "Poet's daughter" .)