It's wrong maybe to put the cat out of the room (5)

I believe the answer is:

attic

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'room' is the definition.
(type of room)

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

(Other definitions for attic that I've seen before include "Of Athens" , "The highest room" , "Top chamber" , "Top storey" , "Floor" .)

I've seen this clue in the Evening Standard.

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