Interrupt, bother (7)
I believe the answer is:
disturb
I believe this is a double definition.
'interrupt' is the first definition.
(I know that interrupt can be written as disturb)
'bother' is the second definition.
(I know that bother is a more specific form of agitate)
(Other definitions for disturb that I've seen before include "Unsettle, discomfit" , "Upset - agitate" , "inconvenience" , "Trouble - interrupt" , "Upset or tamper with" .)