The term 'settles down' can be described by the crossword solutions of 'calms' (5 letters), 'nests' (5 letters), and 'ROOSTS' (6 letters). Calming down is a process of reducing stress and anxiety, while nesting and roosting are activities associated with birds that involve finding a safe place to rest and build a home. Therefore, the term 'settles down' can be interpreted as finding a safe and comfortable place to rest and relax.