[3] In January 2012 McLean was the referee for a Scottish League Cup semi-final[4] - an Ayrshire derby between Kilmarnock and Ayr United, won by the former who went on to lift the trophy.
[5] In 2015, McLean took charge of a League Cup semi-final between Aberdeen and Dundee United, and a Scottish Cup semi-final between Inverness CT and Celtic; he and his assistants came in for criticism for their performance in the latter match, where they missed an apparent deliberate handball by an Inverness defender in his own penalty area at a pivotal point in the game.
[6][7] McLean was in-charge of another semi-final in January 2016 when Hibernian met St Johnstone in the League Cup.
In May 2016 McLean was selected to officiate his first Scottish Cup final, the 2016 edition at Hampden Park involving Rangers and Hibernian,[8][7] and was also chosen for Scottish football's most high-profile domestic league fixture, the Old Firm derby, on Hogmanay 2016 - both matches passed with no controversy on the part of the officials.
As of 2016, McLean was employed full-time by the SFA as a recruitment and education officer for referees[9] and is also a qualified fitness instructor and physiotherapist (member of CSP).