Related Clues:

• Tedious one
• Tiresome type
• Bring to tears?
• Make holes
• Interest-reduction cause?
• Ornamental gemstone
• Barrel statistic
• Gun barrel stat
• Tedious sort
• Drip
• Yawn-inducing speaker, say
• What unexciting drillers do?
• Tedious talker
• Shade of green or type of gem
• Droner, often