Austrian composer, religious type, called out in children's game (4-3-4)

I believe the answer is:

hide-and-seek

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'children's game' is the definition.
(I've seen this before)

I don't understand how the remainder of the clue works.

(Another definition for hide-and-seek that I've seen is " Children's game".)

I've seen this clue in The Everyman puzzle in The Observer.

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