- The confusion has cleared.
- The problem has solved.
Actually, I've looked up in many reputed dictionaries and haven't found any usage of "solve" and "clear" in the way in which these are used in the above sentences. But when I google these usages, I find many results on reputed websites using "solve" and "clear" in that way. This is what I found on Wikipedia:
After the confusion has cleared, the schoolmaster and Anton have an honest discussion.
I want to know whether these sentences are correct or not. If these are correct, why are these usages not in any dictionaries?
If these usages are incorrect, why are they being used commonly?