Go for champs in broadcast (6)
I believe the answer is:
choose
'go for' is the definition.
(I've seen this in another clue)
'champs in broadcast' is the wordplay.
'champs' becomes 'chews'.
'in broadcast' shows a homophone (sound like).
'chews' is a homophone of 'CHOOSE'.
(Other definitions for choose that I've seen before include "Vote" , "Make a selection" , "So echo (anag) - wish" , "Pick, select." , "Think fit" .)