Disturb; interrupt (7)
I believe the answer is:
disrupt
I believe this is a double definition.
'disturb' is the first definition.
(I've seen this before)
'interrupt' is the second definition.
(synonyms)
(Other definitions for disrupt that I've seen before include "Break up" , "Interrupt and spoil" , "Disturb" , "Throw into disorder" .)