See attempt to get out at the Oval? (4)

I believe the answer is:

york

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

(Other definitions for york that I've seen before include "Archdiocese" , "attempt to get out at the Oval" , "Home of some Mystery Plays" , "City called Eboracum by the Romans" , "Whence the marching Grand Old Duke" .)

I've seen this clue in The Telegraph and The Sun.

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