Possible Clues:

• Rebuke insane oaf with a leer that's nasty (1,4,2,4,3)
• Spilling fine ale a reason for such a biting rebuke (1,4,2,4,3)
• Snub one that has jumped into the canal? (1,4,2,4,3)
• Rocket propelling circus performer towards drum? (1,4,2,4,3)
• A bolt, we hear? One may be sent away with it (1,4,2,4,3)
• Circus performer that's entered shell-like rocket (1,4,2,4,3)
• Stinging rebuff why one's scratching one's head? (1,4,2,4,3)
• Stinging rebuff (colloq.) (1,4,2,4,3)
• A sharp reproof (1,4,2,4,3)