Artificial image, latest captured (7)
I believe the answer is:
plastic
'artificial' is the definition.
(I've seen this in another clue)
'image latest captured' is the wordplay.
'image' becomes 'pic' (I've seen this before).
'latest' becomes 'last' (synonyms).
'captured' indicates putting letters inside.
'pic' enclosing 'last' is 'PLASTIC'.
(Other definitions for plastic that I've seen before include "Synthetic polymer" , "Mouldable material" , "Generic name for certain synthetic materials" , "(Originally malleable) material" , "non-metallic material" .)