Help.. broke piece under car near tire
 

Acura tsx 2008 I am hoping someone can help me identify what this is. The picture is of the front passenger side near the wheel well. I think The “arm” is supposed to be attached to the bolt by it. The “arm” is completely lose and i can move it around. Drivers side is still firmly attached. However i have no idea what the part even is.
What is this? Is it safe to drive? Only noticed it in the process of looking at the brakes.

Picture
 

https://cimg4.ibsrv.net/gimg/acurazi...989db9ee16.png
Picture

That looks like the what you call it link (sway bar link). Available at any local auto parts store- inexpensive.

Car is safe to drive, you may hear a knocking noise tho.

As stated above it is a sway bar link. You will need a set of metric allen wrenches (I don't remember the size) to hold the stud while you remove the mounting nut.
There are multiple DIY videos online. The Honda Accord is identical and most Honda/Acura procedures are very similar.
Also, the sway bar is "spring loaded" so you'll need a long bar (approx 24" to 36") to pry the bar into position to line up the hole with link stud.