Men broadcast rude filth (6)
I believe the answer is:
ordure
'filth' is the definition.
(thesaurus)
'men broadcast rude' is the wordplay.
'men' becomes 'or' (I've seen this in other clues).
'broadcast' indicates anagramming the letters.
'rude' anagrammed gives 'dure'.
'or'+'dure'='ORDURE'
(Other definitions for ordure that I've seen before include "soil" , "Excrement" , "Dung, filth" , "unclean" , "Dirt" .)