Possible Clues:

• Old cat is tough, having a large family
• Formidable family keeping a large old female cat
• Cat referred to in William Baldwin's satire 'Beware the Cat'
• Archaic word for a bad-tempered old woman
• How I make the old cat grim and lank
• Fiend which is cat, we hear
• Old female tabby
• Secures Othello, and one of Portia's suitors