Clark played for Exeter City in the Plymouth and District League before the club turned professional in 1908. Like several other players of the time, he was serving in the army when he appeared for the club. 

Clark, an outside left, played in trial matches for City at the start of the 1907/08 season and subsequently appeared in a friendly shortly after being promoted from corporal to sergeant. Making his league debut against Tavistock on 5 October 1907, he went to play a total of seven first-team league matches until his final appearance against St Michael's on 23 November 1907.