Wires pretty well sorted out for office equipment (11)

I believe the answer is:

typewriters

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'for office equipment' is the definition.
(I've seen this before)

'wires pretty well sorted' is the wordplay.
'wires pretty' can be anagrammed to 'TYPEWRITERS'.
However, I'm not clear how this is indicated.

'out' is the link.

Can you help me to learn more?

(Another definition for typewriters that I've seen is " office equipment".)

I've seen this clue in The Irish Independent.

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