Gathering hears TV broadcast (7)
I believe the answer is:
harvest
'gathering' is the definition.
(harvest is a kind of gathering)
'hears tv broadcast' is the wordplay.
'broadcast' indicates an anagram.
'hears'+'tv'='hearstv'
'hearstv' with letters rearranged gives 'HARVEST'.
(Other definitions for harvest that I've seen before include "reap rewards" , "A season's yield, crop" , "Bring in the corn etc" , "Yield from plants in a single growing season" , "Crops gathered in" .)