Shock, alarm (7)
I believe the answer is:
startle
I believe this clue is a double definition.
'shock' is the first definition.
(I know this)
'alarm' is the second definition.
(I've seen this before)
(Other definitions for startle that I've seen before include "Cause shock to" , "Alarm (someone)" , "Surprise with fright" , "Cause to feel sudden alarm" , "Take by surprise" .)