"Believe" diva (4)
I believe the answer is:
cher
'believe diva' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for cher that I've seen before include "US singer; dear (Fr.)" , "Singer; dear (French)" , "1987 Best Actress Oscar winner for "Moonstruck"" , "Moonstruck star" , "US pop singer" .)