Emissary from East, on stage during meeting (8)
I believe the answer is:
delegate
'emissary' is the definition.
(thesaurus)
'east on stage during meeting' is the wordplay.
'east' becomes 'e' (synonyms).
'on stage' becomes 'leg' (synonyms. I am not sure about the 'on' bit.).
'during' indicates putting letters inside.
'meeting' becomes 'date' (date is a kind of meeting).
'e'+'leg'='eleg'
'eleg' placed into 'date' is 'DELEGATE'.
'from' is the link.
Can you help me to learn more?
(Other definitions for delegate that I've seen before include "Person who represents others as at meeting" , "Name someone to do the job" , "Depute" , "Chosen representative" , "Representative sent to meeting" .)