There are several ways of doing mischief in Burglin’ Gnomes, and gathering clonk is one of the harder ways if you don’t know what needs to be done. This is a mandatory task in the tutorial, but you can also come across this in a random run.
Let’s find out what Clonk is and how to get it. For your ease, I will base the guide on the tutorial. The core steps will mostly remain the same.
How to get Clonk in Burglin’ Gnomes

Clonk stands for anything that’s made of metal. So this could be a toaster, kettle, or even the cat bowl lying around the house. Usually, the kitchen is where you’ll find most of them. To get Clonk, you’ll need to remove items made of metal. So how do we do this?

In the tutorial, you’ll find the window in one corner of the kitchen. Remember it because it will be important. First, reach the oven and open the upper case to use as a ledge. Pull out a drawer from the side, and you can climb onto the upper layers of the kitchen.

If you’re doing the tutorial, you need to remove just one metal item. I have had runs where I had to remove two or more items. Thankfully, going the kitchen route is the best way. Grab a metal item while on the upper area of the kitchen. I picked the toaster, but there are different options.

The toaster is located right beside the window. Push the windowpane to create an open space. Then, grab the toaster, and move it carefully outside through the open window. Drop the item, and you’re done.
However, you’ll need to wait for approximately half a minute for Bob to arrive. Bob is your partner in crime who helps to carry your stolen items for task completion. Once Bob arrives, your job is done. You can now continue on to other tasks or escape to end the round.
That’s how you get Clonk in Burglin’ Gnomes.