clarifying confusions/ concerns - a question about collocation

I was just wondering if we can say clarifying confusions/concerns.

If not, what academic verbs go together with confusions and concerns with the meaning of 'clarifying / solving / removing them'? THANKS a lot

As a NES, but not an English teacher:

I would have no problems with clarifying confusions or concerns, other than the fact that they have different meanings. Confusion suggests uncertainty, whereas concerns suggests problems.

I would personally use "mitigate" with concerns.

Hope this helps
R21

PS: NES = Native English Speaker and was/is (?) on a list of "officially recognised" acronyms used on the forum.