The crossword solution for the term 'Makes Oneself Smart' is 'PREENS'. Preening is a behavior that is often seen in birds, where they use their beaks to clean and arrange their feathers. In humans, preening can refer to grooming oneself, such as combing one's hair or applying makeup. It can also refer to taking pride in one's appearance or accomplishments. In this context, preening oneself can be seen as a way of making oneself smarter, as it implies taking care of oneself and striving for excellence.