The crossword solution for the term 'loosen up, maybe' is OIL. OIL is a type of liquid hydrocarbon that is used in many industries, such as automotive, manufacturing, and energy production. It is also used as a lubricant to reduce friction and wear on machinery and other surfaces. OIL can also be used to loosen up tight or stuck objects, which is why it is an appropriate answer to the clue 'loosen up, maybe.'