The term 'cause disorder' can be summarized by two crossword solutions: MESS (4 letters) and UPTURN (6 letters). MESS is a noun that refers to a state of confusion or disarray. It is often used to describe a situation that is chaotic and disorderly. UPTURN is a verb that means to reverse the direction or trend of something. It can also refer to an improvement in a situation or condition. Together, these two words suggest that a cause of disorder can be a disruption or reversal of the status quo.