The crossword solution for the term 'PARTNER OF 'WEAR'' is TEAR, which is a four-letter word. TEAR is an action that is often associated with sadness or distress, but it can also be used to describe the act of ripping or cutting something apart. It is also used to describe the process of breaking down a material into smaller pieces. In this context, TEAR is the partner of wear, as both words describe the process of something being broken down over time.