Give vent to anger (5)
I believe the answer is:
erupt
'give vent to anger' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for erupt that I've seen before include "Spurt lava" , "Break through (as a volcano)" , "go up" , "Burst forth, like 25" , "Explode" .)