The term 'straight-up' can be defined by the following crossword solutions: VERTICAL (8 letters), HONESTLY (8 letters), SHEER (5 letters), iceless (7 letters), erectly (7 letters), NEAT (4 letters), and ERECT (5 letters). VERTICAL and erectly refer to a physical position, meaning upright or perpendicular. HONESTLY and NEAT refer to an attitude or behavior, meaning without deception or in an orderly manner. SHEER and iceless refer to a quality, meaning without obstruction or without ice. Together, these words describe a situation that is upright, honest, unencumbered, and orderly.