Breakdown of the Roles

Leader/Co-Leader--Self explanatory
Fighter--A fighter in the coliseum
Fighting Trainer--A level 25 dragon who trains dragons to fight in the coliseum.
Warrior--Dragons trained to protect and fight for the clan, in case of war.
Citizen--Self explanatory
Hatchling--Self explanatory
Guard--Specific warrior who protects a certain area at all times.
Advisor--A dragon who, whether from experience or closeness to the leaders, has been granted permission to give advice to the leaders that will be taken greatly into consideration.
Outcast--A dragon who has either alienated themselves from the rest of the clan, or been alienated themselves for terrible crimes committed.
Bard--Writer of poems, stories and/or songs.
Familiar Keeper--A guard and keeper of familiars who lack a dragon
Scientist--A dragon desiring knowledge in the scientific field.
Scholar--A dragon hungry for knowledge.