The crossword solution for the term 'anything that serves as an expedient' is 'CRUTCH'. A CRUTCH is a device used to provide support and stability for people who are unable to put weight on a limb due to injury or disability. It is typically made of wood, metal, or plastic and is held in place by straps around the arm and hand. Crutches are often used to help people walk, but they can also be used to help with balance and stability when standing or sitting.