1998 Oscar-winner Hunt (5)
I believe the answer is:
helen
'1998 oscar-winner hunt' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for helen that I've seen before include "beautiful woman" , "the Parisian woman?" , "The Greek army sailed to Troy to get her back" , "Was this the face that launch'd a thousand ships?" , "Famous beauty of Troy" .)