Can I say "good job. You describe the event very clearly"? I am not sure I can use the word clearly like this. However, it sounds okay to me!
Thanks in advance
Well, each of those words seems appropriate individually, but not when assembled in that sentence. The phrase "describe the event" seems a little odd to me -- yes, it is possible to describe an event, but (depending on the context) it might be more natural to ask someone to, "describe what happened."
Here are some examples where "clearly" sounds natural:
Thanks for explaining the problem so clearly.
Clearly he needs a haircut.
The teacher clearly outlined what would be on the final exam.