A dire sort of broadcast (5)
I believe the answer is:
aired
'broadcast' is the definition.
(synonyms)
'a dire sort' is the wordplay.
'sort' is an anagram indicator.
'dire' is an anagram of 'ired'.
'a'+'ired'='AIRED'
'of' is the link.
(Other definitions for aired that I've seen before include "Vented to or exposed to breeze" , "Exposed to breeze for freshening - say damp clothes" , "Expressed publicly" , "Broadcast; dried" , "Ventilated, or hung out to dry" .)