Now I know what a clapper is, but am unsure of how that would assist him.
Very useful to have. You can mark each scene as it gets shot, as well as other information.
That way your editor doesn't have to import every single shot you made. Only the footage that you know you want to use. What's the point of importing all those bad takes?
Editor can also navigate through footage a lot easier. Let's look at "Scene 22 Take 2", instead of "Hey, load up that part when the guy says that one line".
Also neat little info bits like whether it's supposed to be day or night, and whether there is supposed to be matching sound or not.
As far as edit notes I really have no idea there. Any help?
Any special thoughts or notes you might have, regarding editing?
Like... maybe the transition between scene 2 & 3 is supposed to be a flashback, so use a transition that goes all wavey like a 70's Scooby Doo episode.
If you don't have that written down in notes somewhere, your editor won't know that you are expecting something specific.
I'm trying to be as professional as I can, which is why I came to you guys before asking him.
Dude, nothing wrong with asking him to clarify stuff while you're there. That way you know you'll be on the same page as him/her, even if they have different definitions or expectations.
Looking sage and nodding your head ain't the best way to communicate openly with people you're working with.