The term ADVISER SCHOOL can be broken down into four crossword solutions: DEAN (4 letters), ROVE (4 letters), GURU (4 letters), and MENTOR (6 letters). A DEAN is a senior official in an academic institution, such as a college or university, who is responsible for the administration of the institution. A ROVE is someone who travels around, often with no fixed destination. A GURU is a teacher or MENTOR, especially in religious or spiritual matters. Finally, a MENTOR is an experienced and trusted adviser. All of these roles are important in the field of education, and each can provide valuable advice and guidance to students.