Clue: We make a crowd? Divorcees grabbing pictures, say, back (6)
Answer: EXTRAS
Explanation: We make a crowd? Divorcees grabbing pictures, say, back (6) 
<=ART ("pictures, say) grabbed by EX'S ("divorcees")
 
Wasn't sure about this as EX'S looks clumsy as a plural, but according to my Chambers, EX'S is acceptable as a plural?