Related Clues:

• Mark's second
• Sound of the enemy moving along?
• That's right, sucker!
• Sound of a second hand
• Lyme disease host
• Instant credit check
• But this parasite may make us cross!
• Second mark of approval
• Flash — bloodsucker
• Check (off)
• Checkmark
• Blood-sucking arachnid
• Once-per-second sound
• Second sign of approval that may torment pet
• Sound of a watch