One has an old-fashioned image (4)
I believe the answer is:
idol
'image' is the definition.
(idol is a kind of image)
'one has an old-fashioned' is the wordplay.
'one' becomes 'i' (Roman numeral**).
'has' is a charade indicator (letters next to each other).
'fashioned' indicates anagramming the letters.
'old' with letters rearranged gives 'dol'.
'i'+'dol'='IDOL'
(Other definitions for idol that I've seen before include "Favourite" , "Worshipped figure (not painting); revered person" , "Pop - - (TV)" , "A matinee -- is a handsome actor" , "Figure worshipped - sounds like someone in 7 8" .)