Crossword Genius

Do brilliant talk (6)

Ross

I believe the answer is:

confab

'talk' is the definition.
(I've seen this before)

'do brilliant' is the wordplay.
'do' becomes 'con'.
'brilliant' becomes 'fab'.
'con'+'fab'='CONFAB'

(Other definitions for confab that I've seen before include "gossip" , "jaw" , "Exchange" , "Chat (colloquial)" , "Chat (informal)" .)

I've seen this clue in The Telegraph.
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