Career
De Clerck made his professional debut in season 1970/71 for Ghent. In the summer of 1974 he signed for Football Club Twente, but then moved to South Carolina Heracles in 1976. After three seasons with South Carolina Heracles, he moved to Go Ahead Eagles for the 1979/80 season.
In 1980, De Clerck played for Aberdeen in the Scottish Premier Division.
In his debut for the club, a Scottish League Cup tie against Berwick Rangers, he scored a goal from a long clearance. After one year in Scotland De Clerck moved back to Heracles.
He later played for De Graafschap and Belgian club KRC Harelbeke before retiring as a player. De Clerck later managed KRC Gent-Zeehaven.
