Are capable of duplicating the dance (6)
I believe the answer is:
cancan
'dance' is the definition.
(cancan is a kind of dance)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for cancan that I've seen before include "Lively Parisian dance" , "French female chorus line dance" , "Leg-kicking dance" , "Parisian high-kicking dance" , "Lively stage dance, doubly permissive" .)