Setting for Oedipus Rex film announced (6)

I believe the answer is:

greece

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'setting' is the definition.
The definition and answer can be both locations as well as being singular nouns.
Perhaps there's an association between them I don't understand?

I can't explain the remainder of the clue.

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(Other definitions for greece that I've seen before include "Hellenic republic" , "Country of Sophocles and Plato" , "European nation" , "Athens its capital" , "Country of southern Europe" .)

I've seen this clue in The Times.

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