Dancer's rising career -- aim on sign of victory, possibly (7)
I believe the answer is:
nureyev
'dancer's' is the definition.
(Rudolf Nureyev)
'rising career aim on sign of victory possibly' is the wordplay.
I cannot really see how this works, but
'on' could be 're' ('on' can be mean 'with reference to') and 're' is present in the answer.
'sign' could be 'nu' (nu is a kind of sign) and 'nu' is found in the answer.
'victory' could be 'v' and 'v' is found in the answer.
The remaining letters 'ye' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for nureyev that I've seen before include "Acclaimed Russian ballet dancer" , "Rudolf -, Russ. dancer" , "Who might have danced" , "Rudolf -------, (1938-93), dancer" , "Russian-born ballet dancer, who partnered Fonteyn, d. 1993" .)