Rear clunk + movement in rear wheels when handbrake is on?

I have some kind of clunk coming from the rear.

You'll hear it especially when you make a corner or when doing parralel parking..



So today I jacked the car up, to check the bushings for some free play, but I couldn't really find alot of free play in any bushing.



The rear control trailer arm did had some movement, but I'm not sure if this is normal. Didn't made a clunking noise also. Anyways, I made some videos;



Video RTAB



I think the noise is coming from the rear sway bar, but do you guys think this could be the sway bar bushings? Because it sound more like a metal clunk to me;



Video sway bar



Another weird thing I noticed about my car is that there is still some movement on the rear wheels possible when the handbrake is on;



Wheels on the ground



Wheels in the air



So it's possible to move the wheel a little until the handbrake does it work...

Is this normal? It's on both sides exactly the same.