Anger in 75% of country (or perhaps 43%?) (3)
I believe the answer is:
ire
'anger' is the definition.
(ire is intense rage)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for ire that I've seen before include "Hot temper" , "exasperation" , "Anger, annoyance" , "heat" , "Intense anger" .)