Crossword Genius

Register a rapid succession of drumbeats (4)

Ross

I believe the answer is:

roll

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'register' is the definition.
(list of names)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for roll that I've seen before include "Gymnastic move; bread" , "Move like a ball" , "Bread - list - sway" , "Sound of a drum or a list of names" , "Throw (a die or dice)" .)

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