Measures snow leopards (6)

I believe the answer is:

ounces

I believe this clue is a double definition.

'measures' is the first definition.
(ounce is a kind of measure)

'snow leopards' is the second definition.
('ounce' can be a synonym of 'snow leopard')

(Other definitions for ounces that I've seen before include "Light weights in UNESCO" , "Animals" , "Snow leopards - 16 of them in pound" , "There are16 to the pound" , "Big cats and sixteenths of a pound" .)

I've seen this clue in The Mirror and The Daily Express.

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