Picture of Carol at home, repeatedly plugged by the artist (6,2,3,4)

'picture' is the definition.
(a picture as in a film)

'carol at home repeatedly plugged by the artist' is the wordplay.
I cannot really understand how this works, but
'carol' could be 'sing' (I've seen this in other clues) and 'sing' is located in the answer.
'at' could be 'her' (I've seen this in other clues) and 'her' is present in the answer.
'home' could be 'in' ('he's home' can mean 'he's in') and 'in' is found within the answer.
This may be the basis of clue (or it may be nonsense).

'of' is the link.