Hello, I have quite a few questions about a few things. First of all, my surname is Landrum, which is a variation of Lendrum. Both are scottish surnames. I have read in many places that Lendrum somehow came from the name Comyn/Cumming. If you look at the Lendrum family crest and the Cumming crest, they are very similar.
So, my questions are:

Can I legitimately wear the Cumming tartan? (And yes, I know that anyone can wear any tartan, Im asking if I can wear it legitimately)

What scottish clan do I belong to? Do I belong to the Cumming clan?

Is Lendrum/Landrum a clan?

Thank you, I appreciate any answers

-W