Conversation so far:
What type of medicine was Havelock Ellis involved in?
Havelock Ellis returned to England in April 1879. He had decided to take up the study of sex and felt his first step must be to qualify as a physician.
What type of physcician was Havelock Ellis?
Was Havelock Ellis homosexual?
What does Havelock Ellis do on the medicine side?
Havelock Ellis may have developed psychological concepts of autoerotism and narcissism, both of which were later developed further by Sigmund Freud.

Question: so he studied medicine but never had a practice becaue of the sex clinics?
Self-contained rewrite: So Havelock Ellis studied medicine, but never had a practice because of the sex critics?