Some uncouth rumours creating buzz (5)
I believe the answer is:
thrum
'buzz' is the definition.
(thesaurus)
'some uncouth rumours creating' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'THRUM' is hidden within 'uncouth rumours creating'.
(Other definitions for thrum that I've seen before include "bit of thread" , "Monotonously repeat" , "Monotonous (or rhythmic) sound" , "Strum, hum or drum!" , "Rhythmic buzzing sound - fringe left after weaving" .)