The term 'SUCCESSFUL doctor' can be broken down into two crossword solutions: 'HEALER' (6 letters) and 'SUCCESSFUL' (9 letters). A SUCCESSFUL doctor is a medical professional who has achieved success in their field. They are highly skilled in the practice of medicine and have a strong reputation for providing quality care to their patients. They are often seen as a leader in their field and are respected by their peers. A SUCCESSFUL doctor is also a HEALER, someone who is dedicated to helping people improve their health and well-being.