Related Clues:

• Go (on) dully
• Hurdy-gurdy sound
• Surveillance tool
• Unmanned, unsettling military flier
• Idle fellow, but he gives us a buzz
• Talk boringly; a parasite
• Talk boringly; male bee
• Bertie Wooster, say, is a boring speaker
• Member of Wooster's club
• Low hum; parasite
• Hum; monotonous talk
• Doctor's note inhibiting working for him?
• Continuous sound; bee
• Very small aircraft
• Bee, speak tediously