Any shirts made to fit Vicki 2 with approximations of the Vicki 2 breast morphs will be violating Daz's interpretation of their license. (It doesn't matter what character model you use to make the watermelons stick out.)

Any pants that approximate the Vicki 2 pearshape morphs will be violating the Daz agreement. Any pants using morphs such as heavy, muscular, or barbarian wil violate the Daz agreement because the changes will cover the base mesh, circumventing the need for the upgraded mesh. Even morphs such as faerie or anime are distributable because you can spin the dial to a negative number and have the clothing enlarge around the base model.

I can grab pieces of clothing from different sources and use their Vicki 2 morphs and stick them on Vicki Lo Res (or even Posette) and, with a bit of creative posing and a touch of postwork, make those individual pieces look like one overall Vicki 2 body morph.

It's one thing to say that you can not distribute morphs that you didn't make yourself, or pieces of a mesh that you didn't make yourself. It's quite another to say that you can't distribute morphs or meshes that you made yourself, which is how Daz can interpret all items and morphs that fit their characters.