You surely must have made your subordinate "Aware" of her/his "Key Performance Areas" as well as Key Result Areas" and obtained reaffirmations that they were fully Understtod in terms of Quantity, Quality &Time Limits along with Code of Workplace Conduct. Indifference and Unhelpful Work Habits & Lack of Commitment often arise out of "disconnect" between Superiors and Subordinates.
Harmony can be resotred. Take intiative to Salvage the Situation by once again Making Crystal Clear to your Subordinate ( May Be Checked -Out), " Tasks alloted" and Spell Out Required Output.. Consult & Engage her/Him in Decisions-Making Process. If you carefully Selected this Subordinate, you know her/his Attributes. That is How I tried and succeeded in my Managerial Career in HR Management Domain
Harsh K Sharan, Kritarth Management Caretakers,
22.5.2020