The term 'get accostomed to' can be broken down into three crossword solutions: ENURE (5 letters), ADAPT (5 letters), and INURE (5 letters). ENURE means to make something permanent or secure, ADAPT means to adjust or modify, and INURE means to become accustomed to something. Therefore, the phrase 'get accostomed to' can be interpreted as making something permanent or secure, adjusting or modifying it, and then becoming accustomed to it.