A vice tallied (6)
I believe the answer is:
agreed
'tallied' is the definition.
('agree' can be a synonym of 'tally')
'a vice' is the wordplay.
'vice' becomes 'greed' (I've seen this before).
'a'+'greed'='AGREED'
(Other definitions for agreed that I've seen before include "Harmonised" , "That's right" , "very well" , "Said yes" , "OK, fine!" .)