Endlessly aired rage (3)
I believe the answer is:
ire
'rage' is the definition.
(I've seen this before)
'endlessly aired' is the wordplay.
'endlessly' indicates the central letters (the ends of the words are removed).
The central letters of 'aired' are 'IRE'.
(Other definitions for ire that I've seen before include "Outrage" , "exasperation" , "Paddy" , "Strong emotion" , "'Anger, wrath (3)'" .)