Is there an easy fix for this clipping?

I asked a similar question with regards this a few days ago, and I was told that the little specks of light from the other side of my curtain showing through to the inside was a clipping of some sort. That being said, I wasn’t given a solution on how to fix this, or if it even could be fixed.
image
Is there a possible solution beyond increasing the distance of the faces from one another?