Frost spent his early years in Coventry. He fought in France, Palestine, Crete and the Middle East in WWII and eventually ended up as a prisoner of war. During his time in the prison camp he met the artist Adrian Heath who influenced and persuaded him to become an artist on his release. He went to Cornwall where he lived in a caravan while studying at the St Ives School of Painting. Abstract painting became his metier. He then went to the Camberwell School London and after his time there returned to Cornwall to work as assistant to Barbara Hepworth (who was the wife of Ben Nicholson). He returned to academic life as a teacher at various schools including Bath Academy, University of Leeds, Coventry and Reading. In 2000 the Tate Gallery, London mounted a major retrospective of his work