Best Picture of 1958 (4)
I believe the answer is:
gigi
'best picture of 1958' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for gigi that I've seen before include "Musical, winner of nine Academy Awards" , "Play" , "Movie" , "1958 film, winner of 9 Academy Awards" , "1958 film musical from a Colette novel" .)