Old-fashioned bloke to pay for some area (6,4)

I believe the answer is:

square foot

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

'pay for some area' is the wordplay.
'pay' becomes 'foot' (as in footing the bill).
'for' means one lot of letters go next to another (I've seen this in other clues).
'some area' becomes 'square' (square is a kind of area).
'foot' after 'square' is 'SQUARE FOOT'.

'to' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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