Possible Clues:

• Family-reunion attendees
• To a relative extent,they might provide you with some clues about the North
• Tomtom?
• Remus and Sam, e.g.
• Car B would make them relatively painful
• Car B might erupt with them to a relative extent
• What many brothers are also
• They might find something the matter with Car B, to a relative extent
• Sam is one of them and Tom's another to a relative extent (6)
• Tom and Sam got fur on them which brought them to the boil