Broadcast recognises flair (4)
I believe the answer is:
nose
'flair' is the definition.
(thesaurus)
'broadcast recognises' is the wordplay.
'broadcast' indicates a 'sounds like' (homophone) clue (how the word might sound on the radio or TV).
'recognises' becomes 'knows' (know can mean to recognise someone).
'knows' is a homophone of 'NOSE'.
(Other definitions for nose that I've seen before include "Sense of smell; proceed cautiously" , "Organ of smell" , "Don't cut this off to spite your face" , "Olafactory organ" , "Pry" .)