The term 'shakes up' can be defined by the following crossword solutions: ROCKS (5 letters), flusters (8 letters), jolts (5 letters), ROILS (5 letters), agitates (8 letters), disturbs (8 letters), and jars (4 letters). All of these words refer to an action that causes disruption or unrest. ROCKS, jolts, and ROILS all refer to physical movements that cause a disturbance, while flusters, agitates, disturbs, and jars refer to emotional or mental states that are caused by a disruption. All of these words can be used to describe the term 'shakes up, ' which is an action that causes a disturbance or unrest.