People not in a mess (6)

I believe the answer is:

nation

'people' is the definition.

'not in a mess' is the wordplay.
'mess' indicates an anagram.
'not'+'in'+'a'='notina'
'notina' anagrammed gives 'NATION'.

(Other definitions for nation that I've seen before include "American Indian people" , "Anoint (anag)" , "Race" , "Turkey?" , "People of a country" .)

I've seen this clue in the Evening Standard.

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