The crossword solution for the term 'CURBED, WITH 'IN'' is REINED, which is a 6-letter word. The term 'reined' is used to describe the act of controlling or restraining something, usually with the use of reins. This term is often used IN the context of horse riding, where the rider uses reins to control the horse. IN this case, the term 'CURB' is being used figuratively to mean to restrain or control something, and the word 'IN' is used to indicate that the action is taking place within a certain period of time. Therefore, the crossword solution for the term 'CURBED, WITH 'IN'' is REINED, which means to restrain or control something within a certain period of time.