His first contract in Germany was with
Borussia Lippstadt, then playing in the
Oberliga Westfalen, the third tier of
German football and the highest tier in the region of
Westphalia. After only a year in
Lippstadt, Clarke signed for
Hamm outfit
Hammer SpVg, also in the Oberliga Westfalen. In 1984 he signed for
Blau-Weiss 90 Berlin, then of the German second-tier
2. Bundesliga. He would spend six years with Blau-Weiß winning promotion to the
Bundesliga in the
1985-86 season. The stay in the top-flight was brief, with Blau-Weiß finishing in last-place and suffering relegation back to the second-tier. Clarke remained with Berlin for another three seasons. In 1989 he was offered the chance to return to England to play with
Blackburn Rovers but decided to stay in Germany, dropping a division to play for
Tennis Borussia Berlin in the regional third tier. He helped them win the
Oberliga Berlin in 1990-91 but lost out on promotion to 2.Bundesliga in the playoffs. He retired from professional football in 1992. ==Later years==