Glowing review (4)
I believe the answer is:
'glowing 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 "Rage" , "Party with electronic dance music - be wild" , "Laudatory sort of review - quite a rant" , "Rant about an all-night dance party?" , "Talk wildly and irrationally" .)