Crossword Genius

It carries the wire that carries the wire (9,4)

Ross

I believe the answer is:

telegraph post

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'it' is the definition.
The definition suggests a singular noun which matches the answer.

'carries the wire that carries the wire' is the wordplay.
'carries the wire' becomes 'post' (I can't justify this - if you can you should give a lot more credence to this answer).
'that carries' is a charade indicator (letters next to each other) (in a down clue, some letters go beneath others).
'the wire' becomes 'telegraph' (telegraph wire is a kind of wire).
'post' after 'telegraph' is 'TELEGRAPH POST'.

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I've seen this clue in The Irish News.
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