Voter getting upset with the right man (6)
I believe the answer is:
trevor
'man' is the definition.
(I've seen this before)
'voter getting upset with the right' is the wordplay.
'getting upset' indicates an anagram.
'with' is a charade indicator (letters next to each other).
'the right' becomes 'r' (common abbreviation).
'voter' anagrammed gives 'trevo'.
'trevo'+'r'='TREVOR'
(Other definitions for trevor that I've seen before include "- Howard, English actor (Mutiny on the Bounty)" , "boy" , "man" , "Man's name" , "Chap" .)