Wow! What a way to end the week. I very much enjoyed this debut (!) puzzle from young Mr. Aaronson. So many good entries, and so much tricky cluing! I'm not quite sure where to start... so I guess I might as well start at the beginning.
Coming off of all that, ABOSYSTEM (It describes your type) (blood type) was a challenge! As was the other total unknown (to me) RLSTINE (Author of "One Day at HorrorLand"). And YESSIREEBOB ("Indubitably") was fun, but its symmetrical counterpart WORLDWARIII (Potential cause of the apocalypse) was a little too "real" today.
I had "Strait" clogging things up for a while in the SW, where the excellent SLUICE (Waterway) belonged, and after the SWEARWORD up top, I was in the wrong mindset when I came to "Blue Words" (IMSAD). The three Ss are fun in MISSSAIGON, and they kind of mirror the cluster of Ss in YESSIREEBOB and OGRESS.
I found the whole thing a BEGUILING challenge. For me, the CLAPOMETER is in the red zone, and I'll be watching for Mr. Aaronson's byline in the future!