The term 'Cat on the Prowl' can be broken down into three crossword solutions: MOUSER (6 letters), STALKER (7 letters), and Tom (3 letters). A MOUSER is a cat that hunts mice, so the term could refer to a cat actively searching for its prey. A STALKER is someone who follows or watches someone else, so the term could refer to a cat that is following its prey. Finally, Tom is a common name for a male cat, so the term could refer to a specific cat on the prowl.