At low levels the summoned clanfear is quite good at keeping a bit of the mob aggro off you.
At very low levels there isnt lots of AoE as a sorc.... when you can get lightning splash then that's very good, and can be used with encase to keep the mobs in position.
Until then I'd say get your summoned clanfear out, use crystal fragments & Force shock.
It also depends how high you want to level this character as to which skills you'll have.
In the medium term a light armor setup with thundering presence, liquid lightning, elemental ring, & surge is pretty damn good for AoE mob grinding.