Sudden alarm (5)

I believe the answer is:

panic

'sudden alarm' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for panic that I've seen before include "Sudden alarm" , "Have kittens" , "Sudden feeling of terror" , "Horror" , "Sudden infectious terror" .)

I've seen this clue in The Mirror and The Telegraph.

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