Related Clues:

• Use a drill
• 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
• Death of the party?
• Windbag
• Real drag
• Ear bender
• Cause of ennui
• Gun-barrel diameter