Adverb:
* "Clearly," she said, "you need to take a break." (Indicates emphasis)
* The instructions were clearly written, so I had no trouble following them. (Indicates ease of understanding)
* The evidence clearly points to his guilt. (Indicates certainty)
Adjective:
* The sky was a clear blue, with not a single cloud in sight. (Indicates absence of obstruction)
* She gave a clear explanation of the problem. (Indicates lack of ambiguity)
* The water in the lake was clear and inviting. (Indicates transparency)
Phrase:
* It was clear to everyone that she was the best candidate for the job.
* Clearly, this is not the best course of action.
* It is clearly evident that the company is in trouble.
You can also use "clearly" as part of other phrases like "clearly defined," "clearly stated," or "clearly understood."
The best way to use "clearly" will depend on the context of your sentence and the meaning you want to convey.