Actor confused about victor's frolic (6)
I believe the answer is:
cavort
'frolic' is the definition.
('cavort' can be a synonym of 'frolic')
'actor confused about victor's' is the wordplay.
'confused' is an anagram indicator.
'about' indicates putting letters inside.
'victor' becomes 'v' (phonetic alphabet: alpha, bravo, charlie etc.).
'actor' with letters rearranged gives 'caort'.
'caort' placed around 'v' is 'CAVORT'.
(Other definitions for cavort that I've seen before include "Play boisterously" , "be frolicsome" , "Frisk and frolic" , "Gambol, play about" , "Skip" .)