Uplands, oddly enough (5)

I believe the answer is:

downs

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'uplands' is the definition.
(down is a kind of upland)

I can't explain the rest of the clue.

(Other definitions for downs that I've seen before include "S. England chalk hills" , "Southern uplands" , "Naturally part of SE England" , "Knocks over; drinks" , "North or South, two features of chalk upland in England" .)

I've seen this clue in the Evening Standard.

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