Many points are adult (3)

I believe the answer is:

men

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'many points are adult' is the definition.
I can't tell whether this defines the answer.

'many points' is the wordplay.
'many' becomes 'm' (Roman numeral for a thousand).
'points' becomes 'en' (two compass points).
'm'+'en'='MEN'

Can you help me to learn more?

(Other definitions for men that I've seen before include "Fellows, chaps" , "Soldiers" , "Chess pieces" , "Crew" , "- - -o'-war (ships)" .)

I've seen this clue in the Evening Standard.

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