Acrobatic feat (9)
'acrobatic feat' is the definition.
(handstand is a kind of acrobatic feat)
This is the entire clue.
(Other definitions for handstand that I've seen before include "That's an inversion!" , "Acrobatic manoeuvre" , "Gymnastic inversion" , "good balance, head right down" .)
(Other definitions for splits that I've seen before include "Acrobatic feat -- schisms" , "Acrobatic feat - goes away" , "Breaks open, divides" , "Divides lengthwise" , "Separates or cuts with a sharp tool" .)