Related Clues:

• Wearisome one
• Try one's patience
• Dull speaker
• Practice session
• Pain at a party
• Ho-hum character
• Crashing sort
• Gave birth to
• Make yawn
• Cylinder diameter
• Tedious type
• Long-winded fellow
• Yawn producer
• Reduce to tears, in a way
• Inside diameter, as of a gun