Complex sentence: Wall adopted a Trotskyist outlook and joined the Deane-Grant group, the remnant of the Revolutionary Socialist League which later became the Militant tendency-he became Garston Constituency Labour Party Secretary in 1952.
Split into simpler sentences: Wall adopted a Trotskyist outlook and joined the Deane-Grant group, the remnant of the Revolutionary Socialist League, which later became the Militant tendency. Wall became Garston Constituency Labour Party Secretary in 1952.