Priestess in play producing model scene (7)

I believe the answer is:

diorama

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'scene' is the definition.
(I've seen this before)

I don't understand the rest of the clue.

(Other definitions for diorama that I've seen before include "model of the set" , "Miniature setting" , "contrived scene" , "3-D model representing a scene" , "Representation of scene" .)

I've seen this clue in The Times.

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