Central point arising from Uncle Vanya (5)
I believe the answer is:
navel
'central point' is the definition.
(navel can figuratively mean any central point)
'arising from uncle vanya' is the wordplay.
'arising' says the letters should be written backwards.
'from' indicates the answer is hidden within the clue.
'levan' can be found hidden inside 'uncle vanya'.
'levan' reversed gives 'NAVEL'.
(Other definitions for navel that I've seen before include "for contemplation" , "Target of gaze" , "Variety of orange" , "Umbilicus" , "Belly button" .)