The turbulent relationship between Aleister Crowley and William Butler Yeats is described as both poetic and practical, with Crowley being seen as jealous of Yeats’ poetic talent. Yeats, in turn, was wary of Crowley’s “Magick” as he was seen to use it for darker purposes and was banned from the Hermetic Order of the Golden Dawn. The conflict between the two ended in a physical altercation, known as the “Battle of Blythe Road”, where Crowley was thrown down the stairs by Yeats and his companions leading to Crowley seeking revenge, but not achieving the attention he desired from Yeats who saw him as technically deficient in his verse.
https://www.openculture.com/2016/10/aleister-crowley-william-butler-yeats-get-into-an-occult-battle.html