Returns vote with a good race (6)
I believe the answer is:
gallop
'race' is the definition.
(thesaurus)
'returns vote with a good' is the wordplay.
'returns' is a reversal indicator.
'vote' becomes 'poll' (polling is a kind of voting**).
'with' means one lot of letters go next to another.
'good' becomes 'g' (abbreviation).
'poll'+'a'+'g'='pollag'
'pollag' reversed gives 'GALLOP'.
(Other definitions for gallop that I've seen before include "Fast gait of a horse" , "Fastest pace of horse" , "Fast pace (for horse)" , "Horse's fastest pace" , "Log pal in at this pace" .)