A dizzying display is a visual presentation that is so complex or overwhelming that it causes confusion or disorientation. The two crossword solutions for this term are 'WHIRL' and 'opart'. WHIRL is an action of spinning or turning quickly in circles, while opart is a type of abstract art that uses optical illusions to create the illusion of movement. Together, these two words describe a dizzying display that is both spinning and visually confusing.