Inter-professional supervision combines the social processes of supervision and multi-agency working: both complex and often poorly understood processes. This paper discusses the first author's research of inter-professional supervision, involving an educational psychologist (EP) supervising another professional and complements the recently published guidelines on professional supervision produced by the Division of Educational and Child Psychology (DECP). The research involved 10 semi-structured interviews with six EPs (supervisors) and four other professionals (supervisees) recruited through purposive sampling. Interviews were digitally recorded, transcribed and coded using thematic analysis. Research findings suggested that inter-professional supervision was viewed positively. However, participants had a patchy experience of the contracting aspects of supervision and some talked of conflicting conceptualisations of supervision placing a strain on the supervisory relationship. Conclusions reflect the need to view supervision as a process enacted within multiple contexts which impact upon supervision in important ways.