While still playing at Hofstra, McClean became an FIH certified umpire. Her first international appointment was at the 2005 Junior Pan American Games in Puerto Rico. She went on to umpire at the 2007 Pan American Games, the 2009 Pan American Cup and the 2010 Pan American Youth Championships. In 2010 she was appointed as a neutral umpire for the inaugural Youth Olympic Games in Singapore. At the 2013 Pan American Cup McClean was honored for umpiring her 50th international match. Upon receiving her FIH Grade One in 2013, she became the highest-ranked female umpire from the Caribbean, and has been so since. In the run-up to the Olympic Games of 2016 she was heavily involved in umpiring Olympic Qualification tournaments, including the 2015 Hockey World League Semi-Final in Valencia, Spain, the 2015 Hockey World League Final in Rosario, Argentina, and the 2015 Pan American Games in Toronto, Canada. In 2017 it was announced that McClean was appointed to umpire at the 2018 Hockey World Cup in London, UK.