Husband is maybe hiding alarm (6)

I believe the answer is:

dismay

'alarm' is the definition.
('dismay' can be a synonym of 'alarm')

'husband is maybe hiding' is the wordplay.
'hiding' indicates a hidden word.
'DISMAY' is hidden within 'husband is maybe'.

(Other definitions for dismay that I've seen before include "Fill with apprehension" , "Feeling of despair in the face of obstacles" , "Horrified amazement" , "Concern and distress at something unexpected" , "Consternation, disheartenment" .)

I've seen this clue in The Telegraph.

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