The term 'WON'T LEAVE ALONE' can be summarized by two crossword solutions: NAGS (4 letters) and PESTERS (7 letters). NAGS are people who constantly bother or annoy someone, usually with persistent complaints or demands. PESTERS are people who continually bother or annoy someone, often in an intrusive or aggressive way. Both terms refer to people who are unwilling to leave someone alone and persistently demand attention.