Setter's given a long time to make pictures (6)
I believe the answer is:
images
'pictures' is the definition.
('image' can be a synonym of 'picture')
'setter's given a long time' is the wordplay.
'setter's' becomes 'im' (I've seen this in other clues).
'given' is a charade indicator (letters next to each other).
'a long time' becomes 'ages' (I've seen this before).
'im'+'ages'='IMAGES'
'to make' is the link.
(Other definitions for images that I've seen before include "'Reflections, likenesses (6)'" , "Likenesses or impressions" , "ideas" , "Likenesses or mental pictures" , "visions" .)