Five-star review (4)
I believe the answer is:
rave
'five-star review' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for rave that I've seen before include "Rant about an all-night dance party?" , "Talk with extreme enthusiasm or wild delirium" , "Rapturous" , "Modern youth dance - sounds hysterical" , "Talk wildly and irrationally" .)