Grammy category (1,3,1)
'grammy category' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for rap that I've seen before include "Blame, punishment" , "Hit - "songs" by Snoop Dogg and Jay-Z, say" , "Criminal charge" , "Form of music with spoken lyrics" , "Urban music style" .)