Possible Clues:

• Arturo -, nineteeth to twentieth century Italian conductor
• Go on stage — aren't I funny as comedian, perhaps?
• Board coach, ignoring Republican artiste
• Source of amusement in Internet era, perhaps
• One looking for applause has to come in and earn it possibly
• Composer not having debut on record as performer
• The ___ (1902 Scott Joplin piano rag)
• Record and somehow retain performer
• Eg, singer or comedian
• One providing hospitality