The term 'STEP FACE' is composed of two words, 'STEP' and 'FACE'. The first word, 'STEP', can be defined as a single movement in a sequence of actions, while the second word, 'FACE', can be defined as the front part of a person's head. The crossword solution for this term is 'RISER', which is a vertical member that supports the treads of a stairway. In other words, the term 'STEP FACE' can be interpreted as the vertical surface of a stairway, which is often referred to as a RISER.