Answer:
clinical psychologist
Step-by-step explanation:
Clinical psychologist -
A clinical psychologist is the mental health professional , who helps to treat any type of mental and emotional illness , any abnormality in the behavior and obsessive - compulsive disorder , is referred to as a clinical psychologist.
These people have done doctorate degree in psychology , to enter into this profession.
Hence, from the given information of the question, the correct term is a clinical psychologist .