Introduction:
The Englishman referred to in the question is Stephen Spender, who was an important figure in the literary and intellectual circles of England during the 20th century. He was not only a poet and writer but also an editor and critic. This answer will provide more details about Stephen Spender and his contributions.

Stephen Spender:
Stephen Spender was born on February 28, 1909, in London, England. He attended the University of Oxford, where he became friends with several influential writers and poets, including W.H. Auden and Christopher Isherwood. This group of writers, known as the "Oxford Group" or the "Auden Generation," played a significant role in shaping literature and intellectual thought in the 1930s.

Contributions:
1. Poetry: Stephen Spender was known for his poetry, which often explored themes of love, politics, and social justice. Some of his notable works include "The Still Centre," "The Edge of Being," and "Collected Poems." His poetry was characterized by its lyrical and introspective nature, and he often incorporated personal experiences and political ideologies into his verses.

2. Editorial Work: Stephen Spender served as the editor of The Encounter, a prominent British periodical. The Encounter was known for its intellectual and political discussions and featured contributions from renowned writers, thinkers, and public figures. Spender's role as editor allowed him to shape the content and direction of the publication, making it a platform for engaging with important issues of the time.

3. Political Engagement: Stephen Spender was actively involved in politics and social causes throughout his life. He was a pacifist and a socialist, and his political beliefs often found expression in his writing. He was a vocal critic of fascism and totalitarianism, and his works reflected his concerns about the political climate of his time.

Conclusion:
Stephen Spender was an English poet, writer, editor, and political activist. He made significant contributions to literature through his poetry and editorial work. As the editor of The Encounter, he played a crucial role in shaping the intellectual and political discourse of his time. His engagement with politics and social issues further solidified his position as a prominent figure in English literature.