Someone visited my blog by searching "What is Wide Scope Descriptivism?" This is a pretty great coincidence because I'm currently working on a paper arguing against Wide Scope Descriptivism (aka Widescopism).

To that person: Here is the first paragraph of that paper. I hope it answers your question.

Widescopism is a version of descriptivism about proper names. Widescopists hold that when sentences containing names are embedded inside modal operators, the descriptive semantic content of these names should always take widescope with respect to the modal operators. This enables widescopism to offer a version of descriptivism that is immune to Kripke’s famous modal objection to descriptivism.