Set the tone for your week and solve our Monday crossword. This week's puzzle was constructed by Kelsey Dixon , and edited by Hoang-Kim Vu. Kelsey is a southerner by birth, a Mariah Carey fan by choice, and a Chicagoan by the grace of god. When she's not busy working as the crossword editor for the Atlantic , she can be found investigating the Edmonton Oilers polycule or breaking single-use…