The term 'SHAPES UP' can be broken down into two crossword solutions: TONES (5 letters) and SNAPSTO (7 letters). TONES is a term used to describe the different levels of sound, such as pitch, volume, and timbre. SNAPSTO is an abbreviation for snap-together, which is a type of construction that involves connecting pieces without the use of tools or fasteners. Together, these two terms can be used to describe the process of creating something from individual parts.