Solutions Extreme members of group has 6 entries with similar clues

• 8-letter words
• communalRelating to all the members of a group jointly
• uniformsClothes worn by members of a group
• 10-letter words
• collectiveRelating to all the members of a group jointly
• initiationRitual of admittance to group membership
• 13-letter words
• pecking-orderA strict order of importance among members of a group
• 15-letter words
• esprit-de-corpsFeeling of pride and loyalty shared by members of a group