According to the website, " Other times, a dead deity retains enough power to provide divine backing to a handful of worshipers."

Does this mean you can do a divine spellcaster (clerics or druids) of the deities and still get spells; or would it require an application?

And I'm not talking about Ibrandul.

To be even more specific, would a druid of Moander (his worshippers were corrupt druids after all) receive any spells?

That's a good question! Moander, specifically, can not grant spells at this time in EfU -- but if you're interested in Moander, you should talk with me on IRC.