Stir up arguments, we hear (5)
I believe the answer is:
rouse
'stir up' is the definition.
(I've seen this before)
'arguments we hear' is the wordplay.
'arguments' becomes 'rows' (I've seen this in other clues).
'we hear' indicates a 'sounds like' (homophone) clue.
'rows' is a homophone of 'ROUSE'.
(Other definitions for rouse that I've seen before include "Cause to wake up and come alert" , "Get going" , "Bumper" , "Excite; awaken" , "To start" .)