The term 'upward climb' can be summarized as an ASCENT or a gradual increase in elevation. It is often used to describe a situation in which someone is making progress or achieving success. The crossword solution for this term is 'ASCENT, ' which is a synonym for upward climb. ASCENT is defined as the action of rising or climbing, especially when referring to a physical journey. It is also used to describe a figurative journey of improvement or success.