Idle talk or rumour (6)
I believe the answer is:
gossip
This clue is a double definition.
'idle talk' is the first definition.
(I've seen this before)
'rumour' is the second definition.
(I know that rumour is a more specific form of the action gossip)
(Other definitions for gossip that I've seen before include "Scandalmonger" , "creating scandal" , "Rabbit" , "Idle and mildly malicious talk" , "Dish the dirt" .)