Related Clues:

• 'Get away, stranger!' (from a cat)
• "Get away, stranger!" (from a cat)
• Crawler, in a manner of speaking, lets off steam perhaps
• Make a sibilant sound
• Derisive welcome
• Snake noise
• Sound coming from this snake
• Reaction from an angry cat
• Audible disapproval in this snigger or sigh is strong
• Expression of disapproval during this speech is stated twice
• Say hello to the villain hiding under Memphis sycamore
• Greeting sons in urgent whisper
• Let villainous play-actor have it, hiding under Memphis sycamore
• Leakage evidence
• Cobra sound