Dr Clayton qualified in medicine at Leeds University. He is a consultant gynaecologist and accredited as a sub-specialty trained surgeon in gynaecological oncology.
His research degree (MD) studied potential novel treatments for endometriosis. During this time he was trained to an advanced level in laparoscopic (keyhole) surgery.
He has undertaken fellowship training in gynaecological oncology and laparoscopy in Australia and gynaecological oncology in London (Barts and the Marsden).
In NHS practice, he works at St Mary’s Hospital, Manchester and Christie Hospital, Manchester as a gynaecological oncologist. In addition, he is a general gynaecologist and looks after patients with a variety of problems including abnormal smears, vulval disorders, menstrual problems, post-menopausal bleeding, ovarian cysts and endometriosis. He is a member of the recently formed endometriosis centre at St Mary's Hospital.