Related Clues:

• One with flow, hopefully
• Oscar night figure
• Densely built
• Ceremony facilitator
• Speaker introducer
• Speaker between speeches
• Roast V.I.P.
• Toaster, at times
• Compère
• Concrete or reilable
• Firm, strong
• Three-dimensional shape, not hollow
• Not hollow, the same throughout
• Thus the top has not got a hole in it
• Thus it's not a hollow top