Comrade Victor has converted (9)
I believe the answer is:
tovarisch
'comrade' is the definition.
(I know that tovarisch is a type of comrade)
'victor has converted' is the wordplay.
'converted' is an anagram indicator.
'victor'+'has'='victorhas'
'victorhas' with letters rearranged gives 'TOVARISCH'.
(Other definitions for tovarisch that I've seen before include "Comrade (Russ.); shot vicar (anag.)" , "Friend" .)