A new wife in a state that doesn't bespeak peace? (3,5)

I believe the answer is:

war bride

I'm a little stuck... Click here to teach me more about this clue!

'a new wife in a state that doesn't bespeak peace?' is the definition.
(woman married to a soldier during wartime)

'a new wife' is the wordplay.
'a new' becomes 'war' (I can't explain this - if you can you should give a lot more credence to this answer).
'wife' becomes 'bride' (I have seen 'Wife of groom ' mean 'bride' so perhaps 'wife' could also mean 'bride').
'war'+'bride'='WAR-BRIDE'

Can you help me to learn more?

(Another definition for war bride that I've seen is " one married after some hostility".)

I've seen this clue in The Telegraph.

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