Dark Jezter said:
If your cleric is a sun elf from Forgotten Realms, then he should behave like a Nazi SS officer from an Indiana Jones movie. Yes, sun elves really are that rascist and arrogant.
Stop trolling.
If you play a sun elf cleric of Corellon Larethian in the Forgotten Realms, your character must be NG, CG, or CN. None of these fit into the racist, arrogant, stereotyped Nazi nonsense.
Besides, he wanted to hear useful input, not turn this into a battlefield between elf fans and elf bashers.
My advice:
Clerics and Feywardens of Corellon are Protectors. You protect elven communities and individuals when they are in peril (and if you're of good alignment, you'll protect others as well).
Corellites are Tacticians. They give advice on battle tactics and strategies (which works well with their role as protectors)
Followers of Corellon are Artists. They are well versed in poetry and music. They also are good in creating Arms and Armor (especially the kind elves favour: Longsword, Rapiers, Bows, Chain Shirts and Chainmail, Mithral items, maybe even Elven Glassteel)
Worshippers of the Creator are Warriors. They can fend for themselves (and others) in combat, be it with Sword, Bow, or Spell.
Finally, as Corellon embodies everything that is elven, his clerics often do the same: Be a warrior and a magician, be an artist and a crafter.
I played a Feywarden some time ago (still AD&D), and I played a moon elven bladesinger and champion of Corellon in 3e.