The player who has created the clan becomes its leader automatically.
Only leader of the clan can assign roles to players

Leader has the following rights to:

1) accept players into the clan
2) exclude players from the clan
3) appoint officers
4) degrade officers
5) appoint veterans
6) degrade veterans
7) edit the clan information
8) invite friends to join the clan
9) launch raids


Officer has the following rights to:

1) accept players into the clan
2) exclude players from the clan, with the exception of the leader and other officers
3) appoint veterans
4) degrade veterans
5) invite friends to join the clan
6) launch raids

Veteran has the following rights to:

1) invite friends to join the clan
2) launch raids

Private has the following rights to:

1) invite friends to join the clan