Greed shown by a new vicar, last in brasserie (7)
I believe the answer is:
avarice
'greed' is the definition.
(avarice is a kind of greed)
'a new vicar last in brasserie' is the wordplay.
'new' indicates anagramming the letters.
'last in' says to take the final letters.
The last letter of 'brasserie' is 'e'.
'vicar' anagrammed gives 'varic'.
'a'+'varic'+'e'='AVARICE'
'shown by' is the link.
(Other definitions for avarice that I've seen before include "Excessive greed for wealth" , "Parsimony" , "Extreme greed for wealth" , "One of seven deadly sins" , "Rapacity" .)