Possible Clues:

• Victor or Rosa Vasquez, to Billy Batson
• A present for fantastic teacher, primarily one looking after child
• One will provide care for a small charge
• Stand-in dad, say
• Working at present for the Guardian?
• In part of nester, cuckoo — has robin perhaps as this?
• Guardian changed after Preston
• Fatter person is flawed as a guardian
• Transport fee arranged by childminder
• Jodie's mom or dad