Possible Clues:

• Relating to a social group
• Bachelor introduced to ordeal of extended family groups
• Like 'Survivor' councils
• How a Brit gets a further fifty to make him so clannish
• Like some groups of people getting OK grade in test
• Head of Buchanans in court case concerning clan
• A hint of bias in examination of a family group
• Ethnic, first in box in court case
• Characterised by strong group loyalty
• Like some lore