Trips the light fantastic (6)
I believe the answer is:
dances
'trips the light fantastic' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for dances that I've seen before include "Eg, tango and samba" , "Set movements to music" , "Ascend (anag)" , "Can-can, cha-cha etc" , "Moves to music" .)