Torment is a talent broadcast (9)
I believe the answer is:
tantalise
'torment' is the definition.
(I've seen this before)
'is a talent broadcast' is the wordplay.
'broadcast' indicates an anagram (letters scattered or cast around).
'is'+'a'+'talent'='isatalent'
'isatalent' with letters rearranged gives 'TANTALISE'.
(Other definitions for tantalise that I've seen before include "Tease cruelly" , "Tease and entice" , "Tease, torment" .)