Revered person's one to do (4)
I believe the answer is:
icon
'revered person's one to do' is the definition.
I can't tell whether this defines the answer.
'one to do' is the wordplay.
'one' becomes 'i' (Roman numeral).
'to do' becomes 'con' (both can mean to defraud).
'i'+'con'='ICON'
Can you help me to learn more?
(Other definitions for icon that I've seen before include "Religious work" , "Symbolic person or image" , "Small image on computer screen" , "Sacred image or picture" , "Representation on wooden panel of saint" .)