Ballet move (4)
I believe the answer is:
plie
'ballet move' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for plie that I've seen before include "Dance move" , "Knees-bend ballet posture" , "8 [BALLET] term" , "Ballet movement bending knees while upright" , "Classic ballet posture" .)