Shakespearean title character (8)
I believe the answer is:
cressida
'shakespearean title character' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for cressida that I've seen before include "Troilus's lover" , "Unfaithful daughter of priest" , "Shakerspeare play ''Troilus and ........''" , "Lover of 5 Down" , "title role" .)