Cuban "line" dance (5)
I believe the answer is:
conga
'cuban line dance' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for conga that I've seen before include "Long-line dance" , "Dance performed in line" , "Latin-American dance" , "What gets line moving rhythmically" , "Snaking Latin American dance" .)