Related Clues:

• Gnat and rat
• Web victims
• Despicable ones
• Raid victims
• They may be hard to get rid of
• Bees/fleas
• Swattable sorts
• Mosquitoes, e.g.
• Entomology subjects
• Exterminators' targets
• Annoying types
• Orkin victims
• Most animals
• Entomologist's study
• They're exterminated