You're content to support bizarre hearsay! (6)
I believe the answer is:
rumour
'hearsay' is the definition.
(I know that hearsay can be written as rumour)
'you're content to support bizarre' is the wordplay.
'content' indicates the central letters.
'to support' is a charade indicator (letters next to each other) (in a down clue, some letters hold others up).
'bizarre' becomes 'rum' (I've seen this before).
The middle letters of 'youre' are 'our'.
'our' put after 'rum' is 'RUMOUR'.
(Other definitions for rumour that I've seen before include "Report of doubtful truth" , "Unverified report" , "Hearsay, gossip" , "buzz" , "What "a little bird" tells you?" .)