Victor not initially finding part of target? (5)
I believe the answer is:
inner
'part of target?' is the definition.
(I've seen this before)
'victor not initially' is the wordplay.
'victor' becomes 'winner' ('winner' can be a synonym of 'victor').
'not initially' means to remove the first letter.
'winner' with its initial letter taken off is 'INNER'.
'finding' acts as a link.
(Other definitions for inner that I've seen before include "Ring round the target bull." , "(Hit on) part of target immediately next to the bullseye" , "Opposite of outer" , "Deep" , "Annulus nearest bull" .)