"Legally Blonde" blonde (4)
I believe the answer is:
elle
'legally blonde blonde' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for elle that I've seen before include "Is she in France" , "French word for 'she'" , "World's best-selling fashion magazine" , "Ms MacPherson, supermodel" , "Fashion magazine - the French "She"" .)