It can really help your new starter to see a plan for their first few weeks of onboarding which helps them to understand what has been set up for them and gives them ideas for what else they can set up for themselves. As well as planning some meetings and activities in advance build in time for you to talk with them regularly in the first few weeks.
If your starter is a career changer and or returner who has had a career break they may feel a different degree of anxiety about their re-introduction to the workplace. They may be anticipating a high amount of change, feel uncertain about where they will fit, unsure of where they should prioritise and overwhelmed by the practicalities of blending work and homelife, particularly regarding hybrid working.