The term 'apply oneself' is a phrase that encourages someone to put in effort and dedication to achieve their goals. The crossword solutions for this term are 'HUSTLE', 'work', 'STUDY', 'EXERT', 'PURSUE', 'TRY', and 'layto' and 'setto'. HUSTLE means to work energetically and quickly, while work implies putting in effort and time to complete a task. Studying involves learning and understanding a subject, while exerting requires physical or mental effort. Pursuing is the act of following something with determination, and trying is making an effort to do something. Lastly, layto and setto mean to make an effort to accomplish something. All of these words can be used to describe the phrase 'apply oneself' and the idea of putting in effort to reach one's goals.