How to destroy actor when overlapped with widget

For a school project I need to drag a widget onto an actor and then destroy it.
I have no clue how to do this. I already know that I can destroy it after a trigger volume but can’t get it working when I drag the ui widget over it.
Can someone explain how to set it up.

The game is top down without camera movement.

I am still a noob with unreal, just to let you know (: