The term 'OUTDO IN PERFORMANCE' can be broken down into two crossword solutions: TOP (3 letters) and UPSTAGE (7 letters). TOP means to surpass or excel in performance, while UPSTAGE means to outshine or outperform someone else. Both terms refer to the idea of surpassing someone else's performance, either by doing better than them or by drawing attention away from them. This is often seen in competitive situations, such as sports, music, or theater.