Came in for the pictures (6)
I believe the answer is:
cinema
'the pictures' is the definition.
(I've seen this before)
'came in' is the wordplay.
'came in' anagrams to 'CINEMA'.
Though, I'm not clear how this is indicated.
'for' is the link.
Can you help me to learn more?
(Other definitions for cinema that I've seen before include "Picture house" , "multiplex, perhaps" , "Modern art" , "Motion pictures" , "place for pictures" .)