His romances, rewritten for noblewoman (11)
I believe the answer is:
marchioness
'for noblewoman' is the definition.
(marchioness is a kind of noblewoman)
'his romances rewritten' is the wordplay.
'rewritten' is an anagram indicator.
'his'+'romances'='hisromances'
'hisromances' anagrammed gives 'MARCHIONESS'.
(Other definitions for marchioness that I've seen before include "She's entitled" , "noble wife, perhaps" , "Aristocratic lady" , "Noble lady" , "Wife of a marquis" .)