Nijinsky or Nureyev (7)
I believe the answer is:
danseur
'nijinsky or nureyev' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for danseur that I've seen before include "One may need to be on one's toes" , "Man in ballet" , "Male ballet dancer, partner of a ballerina" , "Ballerina's partner" , "Entertainer" .)