Source of pains in Europe (5)

I believe the answer is:

spain

'in europe' is the definition.
('Spain' is part of 'europe')

'source of pains' is the wordplay.
'source of' is an anagram indicator.
'pains' is an anagram of 'SPAIN'.

(Other definitions for spain that I've seen before include "European country" , "part of Europe" , "Iberian 4" , "Madrid is its capital" , "EU country" .)

I've seen this clue in the Evening Standard.

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