"Swan Lake" heroine (6)
I believe the answer is:
odette
'swan lake heroine' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for odette that I've seen before include "Part of Swan Lake" , "Swan Lake role" , "1950 film about first female to receive George Cross" , "Female character Swan Lake" , "------ Churchill, French war heroine" .)