Crossword Genius

Hundredweight (3)

Ross

I think it could be either:

cwt

ton

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'hundredweight?' is the definition.
The answer and definition can be both quantities as well as being singular nouns.
Perhaps you can see a link between them that I can't see?

This is the entire clue.

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(Other definitions for ton that I've seen before include "Fashionable" , "Unit of weight equivalent to 2240 pounds" , "Heavyweight" , "1000 kilos" , "2,240 lbs" .)

I've seen this clue in the Evening Standard and the Canadiana.
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