Overrides subordinate and withdraws file (5,4)

I believe the answer is:

pulls rank

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'file' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'overrides subordinate and withdraws' is the wordplay.
'overrides subordinate' becomes 'rank' (I can't explain this - if you can you should give a lot more credence to this answer).
'and' is a charade indicator (letters next to each other).
'withdraws' becomes 'pulls' (I've seen this in another clue).
'rank' after 'pulls' is 'PULLS RANK'.

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I've seen this clue in The Irish Times.

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