Fourth suggestion about old European state (6)

I believe the answer is:

poland

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'european state' is the definition.
(country in Europe)

I don't understand how the remainder of the clue works.

(Other definitions for poland that I've seen before include "EU member" , "East European country" , "Wroclaw's country" , "European nation" , "Country joining the European Union in 2004" .)

I've seen this clue in The Independent.

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