Message board? (5)
I believe the answer is:
ouija
'message board?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ouija that I've seen before include "Something to raise spirits" , "Occult board" , "Type of board used in seances" , "Board for contacting spirits" , "This board is used in spiritualism" .)