From your past experience of providing clinical placements, reflect on the roles you may take on - learning facilitator, educator, professional role model, social support, pastoral support.
Do you feel comfortable with the roles you have identified?
Write down some strategies to ensure you set boundaries that work for you. This may include a frank and practical discussion with the student at the beginning of the placement (e.g. times that you can be contacted, places where cases can be discussed, set supervision sessions).