Talk trashed? (4)
I believe the answer is:
slur
'talk trashed?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for slur that I've seen before include "Aspersion - speak indistinctly" , "Speak as drunk perhaps" , "Innuendo" , "Slight - drawl" , "Slight; blur" .)