Possible Clues:

• 'Accompany, perhaps protectively (6)'
• Homer in established attendance
• Motorcade
• Custodian of French art and gold kept by court
• A company, by the sound of it
• Accompany hired social partner
• MPs could make up this car
• Guard, while the rest are out patrolling round the house
• Cortes arranged for an armed guard
• Social companion or military guard