Meat men (5)

I believe the answer is:

halal

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'meat' is the definition.
Both the answer and definition are singular nouns.
Maybe they are linked in a way I don't understand?

I can't explain the rest of the clue.

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(Other definitions for halal that I've seen before include "Meat slaughtered in accordance with Islamic law" , "Meat fit for Muslims" , "lawfully killed" , "authorised food" , "Meat prepared according to Muslim law" .)

I've seen this clue in the Evening Standard.

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