Argument and arrest (3-2)
I believe the answer is:
run-in
This clue is a double definition.
'argument' is the first definition.
(I know that run-in is a type of argument)
'arrest' is the second definition.
(I've seen this before)
'and' acts as a link.
(Other definitions for run-in that I've seen before include "Quarrel" , "Matches late in season" , "Dispute" , "Approach" , "Fight, disagreement" .)