The term 'KEEPS A WATCH ON' can be summarized by two crossword solutions: 'TENDS' (5 letters) and 'EYES' (4 letters). This phrase implies that someone is keeping a close watch on something, likely to ensure that it is safe or secure. The word 'tends' suggests that the person is actively taking care of the thing they are watching, while the word 'eyes' implies that they are paying close attention to it.