Crossword Genius

RN restart a war with new order that’s issued to police? (6,7)

Ross

I believe the answer is:

arrest warrant

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'issued to police?' is the definition.
I can't judge whether this definition defines the answer.

'rn restart a war with new order' is the wordplay.
'rn' becomes 'ar' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'with' is a charade indicator (letters next to each other).
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'order' is an anagram indicator.
'restart'+'war'='restartwar'
'restartwar' after 'n' is 'nrestartwar'.
'nrestartwar' is an anagram of 'restwarrant'.
'ar'+'restwarrant'='ARREST WARRANT'

'that's' is the link.

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I've seen this clue in The Times.
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