The term 'washes one's hands of' is an idiom that means to refuse responsibility or involvement in a situation. The crossword solutions for this term are ABJURES (7 letters), disowns (7 letters), and DISOWN (6 letters). ABJURES means to renounce or reject formally, while disowns and DISOWN mean to deny any connection with or responsibility for. All three words can be used to express the same sentiment of refusing responsibility or involvement in a situation.