Stupid countries got confused (9)

I believe the answer is:

cretinous

'stupid' is the definition.
(I've seen this before)

'countries got confused' is the wordplay.
'got confused' is an anagram indicator (I've seen 'get confused' mean this (I've seen this in other clues)).
'countries' with letters rearranged gives 'CRETINOUS'.

(Another definition for cretinous that I've seen is " Very stupid".)

I've seen this clue in The Daily Express.

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