Something to beat line dancing? (5)
I believe the answer is:
conga
This clue is a double definition.
'something to beat' is the first definition.
(conga is a type of drum)
'line dancing?' is the second definition.
(as in a conga line)
(Other definitions for conga that I've seen before include "Party dance" , "Lined-up dance" , "Long-line dance" , "Cuban dance of three steps followed by a kick" , "What gets line moving rhythmically" .)