Follow the build Mubjon posted. Try to get in to a helpful guild who will help with resources for decent equipment, weapons and armor. Try to find others you can play with. Don't rush if you are solo. Don't do solo anything on elite as you don't have to. Don't do anything above your level.
Have a pet and a fighter hireling with you. Break as many breakables you come across as you will find potions that way. Gather collectables that can get you helpful items like cure pots and wands.
Take wands and scrolls for certain spells like resistances and remove/cure spells etc so saving you spell slots for as many offensive spells as possible. Take nightshield to deflect magic missiles which can be a real pain in the beginning levels. Also use full plate armor and a shield.
Also check this guide...
http://compendium.ddo.com/wiki/Cleric_101