Easily moved to anger (5-8)
I believe the answer is:
short-tempered
'easily moved to anger' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for short-tempered that I've seen before include "Easily moved to anger" , "Irascible" , "Tending to anger quickly" , "Impatient" , "Easily riled" .)