Telegraph pole? Hastings has one (9,6)

I believe the answer is:

newspaper column

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'one' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

'telegraph pole? hastings' is the wordplay.
I cannot really understand how this works, but
'telegraph' could be 'paper' (the Daily Telegraph is a newspaper) and 'paper' is present in the answer.
'pole?' could be 's' (abbreviation for South, as in South Pole) and 's' is present in the answer.
This explanation may well be incorrect...

'has' acts as a link.

Can you help me to learn more?

I've seen this clue in The Telegraph.

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