Related Clues:

• Dull speaker
• Blowhard
• Pain at a party
• Ho-hum character
• Crashing sort
• Use a drill
• Gave birth to
• Make yawn
• Cylinder diameter
• Tedious type
• Yawn producer
• Reduce to tears, in a way
• Inside diameter, as of a gun
• Death of the party?
• Windbag