Board seeing positive responses from two Europeans (5)
I believe the answer is:
ouija
'board' is the definition.
(Ouija is an example)
I don't understand the remainder of the clue.
(Other definitions for ouija that I've seen before include "Medium's medium?" , "Occult board" , "This board is used in spiritualistic sessions" , "Board used in spiritualist session" , "(Seance) lettered board" .)