"Pygmalion” heroine (5)
I believe the answer is:
eliza
'pygmalion heroine' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for eliza that I've seen before include "flower-girl in dramatic work" , "- Doolittle (My Fair Lady)" , "girl" , "Miss Doolittle" , "Henry Higgins' protege (My Fair Lady)" .)