Disturbances which parading soldiers are in? (4)
I believe the answer is:
rows
This clue is a double definition.
'disturbances' is the first definition.
'which parading soldiers are in?' is the second definition.
(Other definitions for rows that I've seen before include "Propels into quarrels?" , "Puts one's oar in" , "Angry disputes" , "Columns" , "Arrangements side by side in lines" .)