Last performance includes artist to the stars (6)
I believe the answer is:
astral
'to the stars' is the definition.
I can't tell whether this definition defines the answer.
'last performance includes artist' is the wordplay.
'performance' is an anagram indicator.
'includes' indicates putting letters inside.
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'last' with letters rearranged gives 'astl'.
'astl' placed around 'ra' is 'ASTRAL'.
Can you help me to learn more?
(Other definitions for astral that I've seen before include "19 [STELLAR]" , "Universal" , "like a star" , "Like the stars" , "Resembling the stars - of the spirit world" .)