What I should have done if I were in your position (7,6)

I believe the answer is:

changed places

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'what i should have done if i were in your' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'position' is the wordplay.
I cannot quite understand how this works, but
'position' could be 'place' (synonyms) and 'place' is located in the answer.
This explanation may well be incorrect...

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I've seen this clue in The Globe and Mail.

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