Possible Clues:

• 'Large, sharp tooth (4)'
• Animal's sharp tooth
• Tooth tended to by a vet, perhaps
• Long canine
• Something in the mouth, new smoke rings
• Venom spout
• Dracula feature film announced no ghoulish firsts
• Canine on a feline
• Provides support to force, in a manner of speaking, in Cameroon
• Intermittently flaunt gold front tooth