The process of washing oneself as a crossword clue often corresponds to the answer "TOILETTE," which means the act or process of washing and grooming oneself. It is an 8-letter word commonly used in crossword puzzles for this clue.

Other related clues and answers might include terms referring to personal grooming, washing/dressing, or preparation routines, but "TOILETTE" is a primary and specific crossword answer for the washing/grooming process.