After completing his studies by correspondence from Monte Carlo, Clark was
called to the Bar by the
Inner Temple in 1928, and joined Lincoln's Inn in 1930. After a pupillage with
Raymond Evershed (later Lord Evershed), he joined the Chancery Bar and built a successful practice. In 1939, he was recalled to military service, and served in a number of senior administrative posts. He reached the rank of
lieutenant colonel and honorary
brigadier and was appointed a
Member of the Order of the British Empire. Clark became a King's Counsel in 1943 and was elected Bencher of the Inner Temple in 1951. In 1945, he stood as the
Conservative Party candidate for
Barnet, but lost narrowly to the
Labour candidate. Returning to legal practice in 1945, Clark was involved in high-profile cases such as the
Bank Rate Tribunal and the
Profumo affair. In 1953, he conducted the inquiry into the
Crichel Down affair, which led to the resignation of the
Minister of Agriculture,
Sir Thomas Dugdale. He inherited his father's baronetcy in 1948. In 1961, he successfully represented The Crown against the election court petition of
Viscount Stansgate in
Re Bristol South-East Parliamentary Election. ==Family==