Make fresher talent vie to be broadcast (9)
I believe the answer is:
ventilate
'make fresher' is the definition.
(to ventilate is to provide fresh air)
'talent vie to be broadcast' is the wordplay.
'to be broadcast' indicates anagramming the letters (letters scattered or cast around).
'talent'+'vie'='talentvie'
'talentvie' with letters rearranged gives 'VENTILATE'.
(Other definitions for ventilate that I've seen before include "Superficial" , "Fan" , "Allow fresh air to circulate" , "Let air enter and circulate" , "Expose to a current of fresh air" .)