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Korean, for one, eats cooking by a Welsh girl (4,5)

Ross

I believe the answer is:

east asian

'korean for one' is the definition.
(Koreans are East Asians)

'eats cooking by a welsh girl' is the wordplay.
'cooking' indicates anagramming the letters (cook can mean to falsify or distort).
'by' says to put letters next to each other.
'welsh girl' becomes 'sian' (common Welsh name).
'eats' is an anagram of 'east'.
'east'+'a'+'sian'='EAST ASIAN'

I've seen this clue in The Guardian.
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