Clinton with age turning natural (10)

I believe the answer is:

congenital

'natural' is the definition.
(thesaurus)

'clinton with age turning' is the wordplay.
'with' says to put letters next to each other.
'turning' is an anagram indicator.
'clinton'+'age'='clintonage'
'clintonage' anagrammed gives 'CONGENITAL'.

(Another definition for congenital that I've seen is " Absolute".)

I've seen this clue in The Telegraph.

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