[2][3] After starting his rugby league career with Dewsbury, Clark was signed by Huddersfield in February 1961 in exchange for Keith Balmforth.
[6] Clark played second-row in Leeds' 2–18 defeat by Wakefield Trinity in the 1964 Yorkshire Cup Final during the 1964–65 season at Fartown Ground, Huddersfield on Saturday 31 October 1964.
Clark played prop and was captain in Leeds' 11–10 victory over Wakefield Trinity in the 1968 Challenge Cup "Watersplash" final during the 1967–68 season at Wembley Stadium, London on Saturday 11 May 1968.
Clark played prop, and was captain in Leeds' 11–10 victory over Castleford in the 1968 Yorkshire Cup Final during the 1968–69 season at Belle Vue, Wakefield on Saturday 19 October 1968.
[7] Clark won caps for Yorkshire while at Leeds against Cumberland at Wheldon Road, Castleford, and against Lancashire at Naughton Park, Widnes.