Wild cats in many parts of the pound (6)

I believe the answer is:

ounces

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'wild cats' is the definition.
'ounces' can be an answer for 'cats' (I have seen 'Undomesticated cats' mean 'ounces' so perhaps 'cats' could also mean 'ounces'). I'm unsure of the 'wild' bit.

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for ounces that I've seen before include "Imperial weights" , "Sixteen to a pound" , "Light weights in UNESCO" , "They're equal to about 28 grams" , "Imperial measures of weight" .)

I've seen this clue in the Sydney Morning Herald.

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