Different aim, say - returning picture (5)
I believe the answer is:
image
'picture' is the definition.
(I know that picture can be written as image)
'different aim say returning' is the wordplay.
'different' is an anagram indicator (letters placed in a different order).
'say' becomes 'eg' (both can mean 'for example').
'returning' says the letters should be written backwards.
'eg' in reverse letter order is 'ge'.
'aim' is an anagram of 'ima'.
'ima'+'ge'='IMAGE'
(Other definitions for image that I've seen before include "Likeness, might be spitting" , "External impression" , "Likeness U symbol" , "Mental or physical representation" , "Picture (involving one letter change from 10)" .)