He began his football career with Eastercraig Boys' Club, a successful youth team in Glasgow, followed by spells at amateur club, Giffnock North and semi-professional giants, Pollok Juniors.
In 1989, he was transferred to St Mirren for £285,000, an amount set by tribunal after the two clubs could not agree on a fee.[8] Three years later he moved to Falkirk, before enjoying the most high-profile period of his career when Walter Smith signed him for Glasgow Rangers in 1993. However, he made only nine appearances for the club in the next two years before moving on to Hearts in 1995, followed by a second spell at former club Motherwell in 1996.
He was transferred to Clydebank in 1997, where he spent four years both as a player and coach during the club's turbulent final seasons. By this point Wishart was already working at the players' union as assistant to Tony Higgins.[9] From Clydebank, he then moved to the similarly troubled Airdrieonians in 2001.[10][11]