Coming on stage to charm (8)
I believe the answer is:
entrance
'coming' is the definition.
(thesaurus)
'stage to charm' is the wordplay.
'stage' becomes 'en' (I can't explain this - if you can you should believe this answer much more).
'to charm' becomes 'trance' (synonyms).
'en'+'trance'='ENTRANCE'
'on' acts as a link.
Can you help me to learn more?
(Other definitions for entrance that I've seen before include "arrival" , "Gate" , "Way in - fascinate" , "Beguile" , "drawbridge?" .)