Crossword Genius

Documentation for person with extra land? (4,11)

Ross

I believe the answer is:

dual citizenship

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

'documentation' is the definition.
I know nothing about this answer so I can't tell whether this works.

'person with extra land?' is the wordplay.
I cannot really see how this works, but
'person' could be 'citizen' (citizen is a kind of person) and 'citizen' is located in the answer.
This explanation may well be incorrect...

'for' is the link.

Can you help me to learn more?

I've seen this clue in The Telegraph.
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