News at last due for broadcast (5)
I believe the answer is:
sowed
'for broadcast' is the definition.
(broadcast can mean to sow seeds)
'news at last due' is the wordplay.
'at last' suggests the final letters.
'due' becomes 'owed' (synonyms).
The final letter of 'news' is 's'.
's'+'owed'='SOWED'
(Other definitions for sowed that I've seen before include "broadcast" , "Placed seeds in the ground" , "Scattered seed" .)