Crossword Genius

Just the emperor to break links with the States (7)

Ross

I believe the answer is:

severus

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'just the emperor to break links' is the definition.
I know nothing about this answer so I can't tell whether this works.

'the states' is the wordplay.
I cannot quite see how this works, but
'states' could be 'us' (abbreviation for the United States) and 'us' is found within the answer.
The remaining letters 'sever' is a valid word which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).

'with' is the link.

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I've seen this clue in the Evening Standard.
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