Make fun of useless newspaper (3)
I believe the answer is:
rag
This could be a double definition.
'make fun of' is the first definition.
(thesaurus)
'useless newspaper' is the second definition.
'rag' can be an answer for 'newspaper' (rag is a kind of newspaper). I am not sure about the 'useless' bit.
Can you help me to learn more?
(Other definitions for rag that I've seen before include "Scrap -student carnival" , "University festival or torn cloth" , "Disreputable paper" , "organ?" , "Cloth; bait" .)