Use a giant or two to lure out the clan castle troops. Use a wallbreaker or two if needed to get closer inside the base.
Lure out enemy troops to a corner and kill them on the spot with three or four wizards.
If you broke a hole in the wall when trying to lure out the clan castle troops, send in half of your giants to destroy the nearby defenses. If you haven't broken a hole yet, send one giant to its destination as a distraction, then send in a couple of wall breakers. Then send in half of your giants to destroy the nearby defenses.
Once the nearby defenses have been destroyed, send in the rest of the giants through that spot.
Place 10-15 wizards in a horizontal line behind the giants.
When needed, use healing spells on giants.
When giants have gotten in to the middleish layers, send in the rest of the wizards on two other sides. This will ensure the outer building won't be forgotten. Send in your hero(s) as well at the same spots.
Remember to use hero abilities when a fourth of its health has been lost.