Possible Clues:

• Viper sliding around before noon is deadly biter
• Fanged fiend
• What Britain once had originally replaced by Virginia, fabulous creature
• Folklore creature traditionally averse to the starts of the answers to starred clues
• Blood sucker
• Alluring woman with anger -- that could give one a pain in the neck
• One of those suckers won't allow you to rest in peace
• Type of bat
• Legendary bloodsucker
• Bloodsucker in eastern European folklore