Picture, say, French friend stuck up (5)
I believe the answer is:
image
'picture' is the definition.
(I know that picture can be written as image)
'say french friend stuck up' is the wordplay.
'say' becomes 'eg' (both can mean 'for example').
'french friend' becomes 'ami' (I've seen this before).
'stuck up' shows that the letters should be reversed in order.
'eg'+'ami'='egami'
'egami' back-to-front is 'IMAGE'.
(Other definitions for image that I've seen before include "Presentation" , "Pictorial representation" , "Figure (of speech?)" , "Effigy, icon" , "Reflection" .)