The term 'CHANGING YOUR MIND A LOT' can be summarized by the crossword solution 'SEESAWING', which is a nine-letter word. SEESAWING is an activity in which two people sit on either end of a plank that is balanced in the middle, and they take turns pushing off the ground to make the plank move up and down. This activity is often used as a metaphor for changing one's mind frequently, as the seesaw goes back and forth between two positions.