Mining town at hand, etc (3,7)

I believe the answer is:

and whatnot

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'mining' is the definition.
I know nothing about this answer so I can't tell whether this works.

'town at hand etc' is the wordplay.
'town at hand' anagrams to 'AND WHATNOT'.
Though, I'm unsure how the anagram is indicated.

Can you help me to learn more?

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

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