MB BCh BAO RUI 1904, DPH Belfast 1910; FRCS Edin 1912.
Clements studied at Belfast and Dublin before working in general practice in Moss Side, Manchester. During the second world war he was assistant medical officer of health for Blackburn and was resident physician at Kenworthy's Hydro in Southport. In 1947 Clements' fourth wife died in suspicious circumstances, and Clements died shortly afterwards. After a controversial inquiry into their deaths, and the death of the pathologist responsible for Mrs Clements' postmortem, Dr Clements was found to have murdered his wife and then committed suicide.