Greed seen when fresh caviare’s presented (7)
I believe the answer is:
avarice
'greed' is the definition.
(synonyms)
'when fresh caviare's presented' is the wordplay.
'caviare' can be anagrammed to 'AVARICE'.
Though, I am not sure how the anagram is indicated.
'seen' acts as a link.
(Other definitions for avarice that I've seen before include "Excessive greed for wealth" , "Eager desire" , "Rapacity" , "excessive desire for wealth" , "Cupidity" .)