Make fun of newspaper (3)
I believe the answer is:
rag
I believe this clue is a double definition.
'make fun of' is the first definition.
(thesaurus)
'newspaper' is the second definition.
(rag is a kind of newspaper)
(Other definitions for rag that I've seen before include "Disreputable paper" , "Mock < paper that's poor" , "Cloth; bait" , "Duster, perhaps" , "organ?" .)