The term SHE'S AN INSPIRATION can be summarized by the crossword solution MUSE, which is a four-letter word. A MUSE is a person who serves as an artist's inspiration, often in the form of a goddess or other divine being in Greek mythology. Muses are often credited with inspiring creativity and providing guidance to artists in their work. In modern times, the term MUSE has come to refer to any person who serves as an inspiration for creative work.