Ancient valley changed English name (5)

I believe the answer is:

nemea

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'ancient valley' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'changed english name' is the wordplay.
'changed' indicates an anagram.
'english' becomes 'e' (abbreviation).
'e'+'name'='ename'
'ename' is an anagram of 'NEMEA'.

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I've seen this clue in the Sydney Morning Herald.

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