Critical European claim is wrong (9)

I believe the answer is:

polemical

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

'european claim is wrong' is the wordplay.
'european' becomes 'pole' (someone from Poland).
'is wrong' indicates anagramming the letters.
'claim' anagrammed gives 'mical'.
'pole'+'mical'='POLEMICAL'

Can you help me to learn more?

(Other definitions for polemical that I've seen before include "Involving controversy" , "Engaging in controversial debate" , "Disputed" , "provoking argument" .)

I've seen this clue in The Daily Express.

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