Oh sorry, I was interrupted while I was typing my response. We cannot use it that way. I intended to offer up two different concepts. One was using the SSGET to erase stuff on that layer and the other concept was to use LAYDEL. Sorry, my first post is incomprehensible and incomplete. I am very busy at the moment and trying to do too many things at once. But quickly...
You would use laydel something like this: (command "_laydel" "n" "_3d points" "" "yes")
You can get items on that layer to delete like this: (ssget "x" '((8 . "_3d points")))
You can get the layer entity like this:(tblobjname "layer" "_3d points")