Danger signals exposed Malay spirits (7)

I believe the answer is:

alarums

'danger signals' is the definition.
(old spelling of alarms)

'exposed malay spirits' is the wordplay.
'exposed' means to look at the middle letters (outside letters removed).
'spirits' becomes 'rums' (I've seen this in other clues).
The central letters of 'malay' are 'ala'.
'ala'+'rums'='ALARUMS'

I've seen this clue in The Telegraph.

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