Exhaust anger after argument’s ending (4)
I believe the answer is:
tire
'exhaust' is the definition.
(I know that exhaust can be written as tire)
'anger after argument's ending' is the wordplay.
'anger' becomes 'ire' (ire is intense rage).
'after' is a charade indicator (letters next to each other).
'ending' suggests the final letters (the letter at the end of the word).
The last letter of 'argument' is 't'.
'ire' after 't' is 'TIRE'.
(Other definitions for tire that I've seen before include "Weaken" , "Wear out" , "one of four found on Chevrolet?" , "Become exhausted" , "Fatigue" .)