Something to go off on (4)
I believe the answer is:
rant
(Other definitions for rant that I've seen before include "Harangue, rave" , "Rail" , "Speak intemperately" , "Talk wildly or violently" , "Angry outburst" .)
I believe the answer is:
rant
(Other definitions for rant that I've seen before include "Harangue, rave" , "Rail" , "Speak intemperately" , "Talk wildly or violently" , "Angry outburst" .)