Christian ___, French fashion designer associated with the New Look (4)
I believe the answer is:
dior
(Other definitions for dior that I've seen before include "French couturier, creator of the New Look in 1947" , "French couturier, creator of the New Look, d. 1957" , "Christian --, French clothes designer" , "Lift" , "French couturier, who created the New Look" .)