This article reports on a mentoring programme in a university at the Republic of Ireland, which provides an accreditation pathway to a master’s level qualification. The authors adopted three different and complementary lenses through which to consider mentoring as an academic and professional practice: (a) the international literature; (b) their own reflective and reflexive dialogue; and (c) observations from mentor teachers’ efforts to interrogate their own professional practices. The authors conclude by arguing for productive mentoring, for sustainable change, as an academic, caring and professional practice that is contextually responsive.