The term 'scales up' can be represented by two crossword solutions: LIBRA (5 letters) and CLIMBS (6 letters). LIBRA is the seventh astrological sign in the zodiac, represented by the scales of justice. It is associated with balance, fairness, and justice. CLIMBS is a verb meaning to ascend or move upward. Together, these two words suggest an increase in size or scope, which is the definition of the phrase 'scales up'.