Marital problem — it leaves uneasiness (5)

I believe the answer is:

alarm

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

I can't explain the rest of the clue.

(Other definitions for alarm that I've seen before include "Strike fear" , "Frighten, scare" , "Safety bell or alert signal" , "with which many awake to in the morning" , "Device sounding danger" .)

I've seen this clue in The Hindu.

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