Related Clues:

• Act as a master of ceremonies
• Variety-show figure
• Keynoter introducer
• One with flow, hopefully
• Oscar night figure
• Ceremony facilitator
• Speaker introducer
• Speaker between speeches
• Parasite site
• Roast V.I.P.
• Have a party, say
• Ryan Seacrest, on "American Idol"
• RSVP recipient
• Toaster, at times
• He has guests