Finish result off (6)
I believe the answer is:
lustre
'finish' is the definition.
(lustre is a kind of finish)
'result off' is the wordplay.
'off' indicates an anagram.
'result' with letters rearranged gives 'LUSTRE'.
(Other definitions for lustre that I've seen before include "Prestige" , "Gentle sheen, soft glow" , "Glory; soft glow" , "Gloss, sheen" , "Rustle up the sheen" .)