The crossword solution for the term ONE WAY TO LEAN is BACK. This term is often used to describe a particular posture or stance that someone takes when leaning against a wall or other surface. It is also used to describe the way someone stands when they are leaning forward, such as when they are looking at something in front of them. In either case, the person's BACK is usually arched and their weight is supported by the surface they are leaning against.