If you can't get close enough with the Barbarian, deploy a barbarian then a wall breaker right after to check, or use a giant.
Destroy clan castle troops with the lightning spell.
If you didn't bring a lightning spell or you can't take out the clan castle troops with a lightning spell, drop one barbarian at a time near the edge of the map to lure them out there.
Destroy the troops with a small group of wizards.
Now that that's done, here's what you do. Drop a giant, then drop the required number of wall breakers to break through the first layer of walls and get to the first defence.
Drop the rest of your giants, and place one of the rage spells just ahead of their current target.
Steadily drop wall breakers until you run out or a clear path is cut through the base.
Drop your wizards to clean up the mess, drop another rage spell on the giants if they need it and the healing spell if you brought one and the giants are low on health.
Your wizards should eventually make their way to the town hall and destroy it. If not, drop your Barbarian King to help out.
Do not drop all wall breakers at once, as if a pair destroy one set, the ones immediately after will destroy walls next to it instead of the next compartment. With new hero AI, attack side that isn't covered by their Barbarian King. If he is central, attack the base and the wizards will eventually dispose of him.
Overall good strategy which guarantees 1 or 2 stars. Good Luck and have fun with it!