The term 'Kept an Eye On' can be summarized by two crossword solutions: 'Monitored' (9 letters) and 'Tended' (6 letters). Monitored means to observe or keep track of something, usually over a period of time. Tended means to take care of something, often with the intention of keeping it in good condition. Both words imply that someone is paying attention to something and taking action to ensure its safety or well-being.