Spring ballet performance (9)
I believe the answer is:
entrechat
'spring ballet performance' is the definition.
The definition suggests a singular noun which matches the answer.
This is the entire clue.
Can you help me to learn more?
(Other definitions for entrechat that I've seen before include "Leap in the air" , "Vertical jump in ballet" , "Ballet dancer's leap" , "Form of ballet jump" , "Ballet movement" .)