Image (4)
(Other definitions for idol that I've seen before include "Heathen god" , "False god" , "Honoured figure" , "someone admirable" , "Pin-up" .)
'image' is the definition.
(I know that image can be written as icon)
This is all the clue.
(Other definitions for icon that I've seen before include "Holy image or symbol on computer screen" , "Image or figure venerated as sacred" , "Sacred painting or representative figure" , "Devotional image (C, not K)" , "Image or representation" .)
(Other definitions for self that I've seen before include "Personality" , "Will perhaps" , "Will the writer?" , "one's identity" , "Person's distinct identity" .)