Possible Clues:

• Sibilant sobriquet for "Summertime" singer Sarah Vaughan
• Likely to give some lip
• Smart-mouthed cat in 'Homeward Bound'
• Showing a ’tude
• Prone to impudence
• Prone to back talk
• Cheeky and irreverent
• Impertinent perhaps about small son
• Having some attitude
• Like someone who's clapping back