Related Clues:

• Drill a hole
• Run-down horse
• Tiresome speaker
• Inner diameter
• Bloviator, often
• Unlikely race winner
• Arouse ennui
• Old chestnut?
• Tube's inner diameter
• Was worthy of
• Bettor's interest, perhaps
• Racehorse, slangily
• Tedious one
• When said three times, comment of annoyance
• Apothecary inventory item