Answer: firealarm

AnswerCrossword Clue
FIREALARM

Notice that a building is burning, say

FIREALARM

It helps you avoid burns

FIREALARM

Warning device

FIREALARM
Safety device
FIREALARM
Office safety device
FIREALARMFor a warning device, company must acquire genuine article (4,5)
FIREALARMA prankster may pull one
FIREALARMThis gets an engine started?
FIREALARMEvacuation notice?