it could possibly be the steering spindle. Its like a flange connecting the steering column to the steering rack. I had the sames symptoms and my control arms and bushings were still new after i had changed them. It turned out to be that spindle and it also wears down after time, causing a play on that joint when you turn, hence the cluck/tick noise or creeking. Part cost me R1500, not that hard to change, but a mechanic did it for me.