Star skater is performing (8)
I believe the answer is:
asterisk
'star' is the definition.
('asterisk' can be a synonym of 'star')
'skater is performing' is the wordplay.
'performing' indicates anagramming the letters.
'skater'+'is'='skateris'
'skateris' is an anagram of 'ASTERISK'.
(Other definitions for asterisk that I've seen before include "Character drawing attention to footnote" , "Star-shaped symbol as reference mark." , "Textual reference symbol" , "Star of typography" , "Star on a page" .)