Board needing a “yes” from Paris and Berlin (5)
I believe the answer is:
ouija
'board' is the definition.
(Ouija board is an example)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(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" .)