He's famed for drumming patter, swapping hands (5)
I believe the answer is:
ringo
'he's' is the definition.
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for ringo that I've seen before include "One of The Beatles" , "Member of group" , "Starr drummer" , "The familiar Beatle drummer" , "John Paul I (and another) backed" .)