On a peninsula in a very cold place with no hint of sun (7)

I believe the answer is:

iberian

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But I can't explain it at all! Could you help me understand?

(Other definitions for iberian that I've seen before include "Spanish and/or Portuguese" , "Native of a European peninsula" , "Relating to the Spanish peninsula" , "from a part of Europe" , "Former Caucasian" .)

I've seen this clue in The Times.

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