Clarke is the one who is being accused of a crime here, and elsewhere
Clarke has testified under oath, twice. He has also played the "meet the press" game.
Rice has attacked Clarke for his sworn testimony but has yet to give any of her own in spite of the fact that she was there, too.
It has yet to be proven that Clarke is full of shit. The Administration is throwing plenty at him, but it hasn't stuck, yet, except in the minds of the people who want to believe it has. It may never stick.
If people don't like the comparisons between Rice and Clarke, maybe they should tell Rice to sit down and shut up if she won't testify under oath. As the old saying goes, talk is cheap. Sworn testimony is more expensive.