Dance with Samuel with ball only half completed (5)
I believe the answer is:
samba
'dance' is the definition.
(Brazilian dance)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for samba that I've seen before include "Dance music" , "it was launched in Brazil" , "moves from Brazil" , "Latin dance" , "Lively ballroom dance from Brazil" .)