Well, no, clans are clans.
A clan is a group united by a real or perceived kinship. It is a form of extended family.
A tribe is a confederation of families that live closely with one another, have a common culture/dialect/ethnicity/etc, and a leader.
A state is a politically organized community that may or may not be sovereign.
A nation is an aggregate of people and/or communities united by common traits and living within a particular territory or country.