Interruption, distraction (11)
I believe the answer is:
disturbance
I believe this clue is a double definition.
'interruption' is the first definition.
(thesaurus)
'distraction' is the second definition.
(I've seen this before)
(Other definitions for disturbance that I've seen before include "Unruly outburst" , "Distraction" , "Riot" .)