Ballet move from the fifth plane (4)
I believe the answer is:
jete
'ballet move' is the definition.
'the fifth plane' is the wordplay.
I cannot quite see how this works, but
'plane' could be 'jet' (jet is a kind of plane) and 'jet' is found in the answer.
A single letter 'e' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
'from' acts as a link.
(Other definitions for jete that I've seen before include "movement" , "spring" , "Dance manoeuvre" , "Jump" .)