The crossword solution for the term COMPOSES (ONESELF) is STEADIES, an 8-letter word. Steadies is a verb meaning to make or become steady, firm, or stable. It can also mean to calm or soothe someone or something. This term is often used in reference to emotions, such as steadying oneself in a difficult situation. In this context, it could be interpreted as composing oneself, or calming and controlling one's emotions.