Concurred missing front is in vice (5)
I believe the answer is:
greed
'vice' is the definition.
(I've seen this before)
'concurred missing front' is the wordplay.
'concurred' becomes 'agreed' ('agree' can be a synonym of 'concur').
'missing front' means to remove the first letter.
'agreed' with its first letter taken off is 'GREED'.
'is in' acts as a link.
(Other definitions for greed that I've seen before include "Immoderate desire" , "Avarice, cupidity" , "Selfish desire" , "Eager desire" , "selfish habit" .)