* Candidly, I don't think the plan will work. (Meaning: Honestly, I don't think it will work.)
* She spoke candidly about her struggles with anxiety. (Meaning: She spoke openly and honestly about her anxiety.)
* The interviewer asked candid questions that made the candidate uncomfortable. (Meaning: The questions were direct and honest, possibly causing the candidate some unease.)
* The report was candid in its assessment of the company's performance. (Meaning: The report was honest and straightforward about the company's performance.)
As you can see, "candidly" is often used to emphasize honesty or directness in communication.