Fairy tale girl (10)
I believe the answer is:
goldilocks
'fairy tale girl' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for goldilocks that I've seen before include "Fairy tale porridge thief" , "fairly shocked girl" , "Childish housebreaker" , "Trespasser" , "Visitor for three bears" .)