Board needing a “yes” from Paris and Berlin (5)

I believe the answer is:

ouija

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'board' is the definition.
(Ouija board is an example)

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

(Other definitions for ouija that I've seen before include "Type of board used in seances" , "Medium's medium?" , "This board is used in spiritualism" , "Board for contacting spirits" , "(Seance) lettered board" .)

I've seen this clue in The Times.

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