Image of a counterfeit coin? (4)
I believe the answer is:
icon
'image' is the definition.
(synonyms)
'a counterfeit coin?' is the wordplay.
'a counterfeit' is an anagram indicator.
'coin' with letters rearranged gives 'ICON'.
'of' is the link.
(Other definitions for icon that I've seen before include "representing a saint?" , "Religious picture on a wooden panel" , "Figure of Christ in Eastern churches" , "Holy image or symbol on computer screen" , "Representative figure as on computer screen" .)