Overstress is a term used to describe the act of putting too much emphasis on something. OVERPLAY, an 8 letter solution to the crossword, means to exaggerate or overdo something. BELABOR, a 7 letter solution, means to explain something in excessive detail. Lastly, OVERSTATE, a 9 letter solution, means to make a statement that is greater than what is true. All of these terms are related to the concept of overstressing something.