Beat the weight (5)

I believe the answer is:

pound

I believe this is a double definition.

'beat' is the first definition.
(synonyms)

'the weight' is the second definition.
(pound is a kind of weight)

(Other definitions for pound that I've seen before include "Hit -money - pen" , "Beat; money" , "Caged poet" , "# and lb" , "Enclosure for stray animals" .)

I've seen this clue in The Globe and Mail.

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