Type of music hit (3)

I believe the answer is:

rap

I believe this clue is a double definition.

'type of music' is the first definition.
(music genre)

'hit' is the second definition.
(rap can mean to hit or knock)

(Other definitions for rap that I've seen before include "Short quick tap" , "Sharp blow; criticism" , "Sharply criticise" , "Criminal charge" , "Hit - "songs" by Snoop Dogg and Jay-Z, say" .)

I've seen this clue in The Times.

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