Some unpatriotic disturbance (4)
I believe the answer is:
riot
'disturbance' is the definition.
(I've seen this before)
'some unpatriotic' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'RIOT' can be found hidden inside 'unpatriotic'.
(Other definitions for riot that I've seen before include "Violent crowd disturbance" , "Affray, fighting in the streets" , "Wild disturbance by crowd of people" , "A public affray or disturbance" , "loose living" .)