The term 'spurring on' can be defined as encouraging or motivating someone to do something. The two crossword solutions for this term are 'PRODDING' (8 letters) and 'egging' (6 letters). PRODDING is an action that involves pushing or poking someone in order to get them to do something, while egging is a form of encouragement that involves cheering someone on. Both of these terms are used to motivate someone to take action.