Gymnastics move (4)
I believe the answer is:
flip
'gymnastics move' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for flip that I've seen before include "hit the roof" , "Toss - flick - turn over" , "demanding > alcoholic drink" , "Turn quickly over; sort of chart" , "Show great anger - . . . . your lid" .)