Part of Manhattan, as far as two quarters will get you (6)

I believe the answer is:

uptown

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'part of manhattan' is the definition.
(as in Uptown Manhattan)

I don't understand how the rest of the clue works.

(Other definitions for uptown that I've seen before include "Towards the urban centre" , "Residential area away from the commercial district" , "Describing the more affluent part (of New York, perhaps)" , "US urban residential area" , "Residential part of a (US) city" .)

I've seen this clue in The Guardian.

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