 Clinton-Davis has over 50 years of service as a solicitor.He became a solicitor in November 1953 and was a founding partner of Clintons, becoming head of its Hackney branch, Clinton Davis & Co.

Clinton-Davis has also worked as Consultant on European Law and Affairs for S. J. Berwin & Co (1989–97, 1998–2003).Clinton-Davis is a prominent advocate for the Jewish community and has spoken in Parliament on numerous occasions on issues affecting the Jewish community and Israel.