First published by Eric Mottram in the Poetry Review winter 1972-73 issue, Clarke founded Angel Exhaust with Steve Pereira in the late 1970s, resurfacing in the mid-1980s with Reading Reverdy and Ghost Measures from Paul Brown's Actual Size press.
Then began a long association with Bob Cobbing and Writers Forum which included co-editing AND magazine from 1994.
Clarke also co-edited Floating Capital with Robert Sheppard in 1991.
He has been a member of the Veer Books editorial collective since 2010.
He lives in Brighton, Sussex in the South of England.