Related Clues:

• Real bore
• Sleep sound
• Proceed tediously, as a film
• Nap noisily
• Unpaved road feature
• Sound of sawing wood?
• Go on too long
• Ho-hum routine
• Dead-end job, e.g.
• 'Some Like It Hot' costuming
• Cause someone's insomnia, maybe
• Become tedious
• Going-nowhere groove
• 'What ___!' ('Bummer!')
• Seem to go on forever