Clune played seven seasons with the Marlies, captaining the club in his final two years, before announcing his retirement from his 16 year professional career on August 4, 2022. It was announced that Clune would remain within the Toronto Maple Leafs organization as a member of the player development staff.
Clune's decision to retire after seven seasons with the Marlies and two years as captain led to his announcement on August 4, 2022, that he would end his 16-year professional career. Clune will remain connected to the Toronto Maple Leafs organization through his role in their player development staff.