A crew group is a group of people who work together to accomplish a task. The term 'crew group' can refer to a variety of different types of groups, such as a rowing team or a film production team. In this case, the crossword solution for the term 'crew group' is 'OARS, ' which refers to the long, thin paddles used to propel a boat through the water. OARS are typically used in pairs, with each person in the crew group taking an oar and working together to move the boat forward.