Pictures, a long time after one gets married (6)
I believe the answer is:
images
'pictures' is the definition.
(I know this)
'a long time after one gets married' is the wordplay.
'a long time' becomes 'ages' (I've seen this before).
'after' is a charade indicator (letters next to each other).
'one' becomes 'i' (Roman numeral).
'gets' means one lot of letters go next to another.
'married' becomes 'm'.
'i'+'m'='im'
'ages' put after 'im' is 'IMAGES'.
(Other definitions for images that I've seen before include "Semblances" , "Visual counterparts in lens or mirror" , "Likenesses or mental pictures" , "visions" , "Likenesses or impressions" .)