New aim, say - returning picture (5)
I believe the answer is:
image
'picture' is the definition.
(I know that picture can be written as image)
'new aim say returning' is the wordplay.
'new' is an anagram indicator.
'say' becomes 'eg' (both can mean for example).
'returning' says the letters should be written backwards.
'eg' written backwards gives 'ge'.
'aim' with letters rearranged gives 'ima'.
'ima'+'ge'='IMAGE'
(Other definitions for image that I've seen before include "Optical counterpart in mirror" , "External impression" , "Picture; simile" , "Photo or likeness" , "Likeness; metaphor" .)