I usually get nervous when I see a puzzle this wide open, wondering how many bizarre entries I'll have to figure out, including but ...
read moreI usually get nervous when I see a puzzle this wide open, wondering how many bizarre entries I'll have to figure out, including but not limited to esoterica, words made up by adding RE- or -ER, and standard short crossword glue. What a huge relief to sail through this puzzle with not much of the aforementioned at all!

My favorite was the upper right, what with MEGATRON (leader of the evil Decepticons in "Transformers," and also the awesome nickname for former Detroit Lions WR Calvin Johnson) featured, plus STEPSONS and ICE CAP pretty good too.
And really just one gluey entry up there! SPINET is a perfectly legit musical instrument (a small piano, basically), but like David mentioned, TIRO is a toughie. I'm on the fence whether or not Cicero's longtime servant is crossworthy, but the other, much more common definition of TIRO [Newbie: Var.] makes for a clearly gluey answer.
The bottom right is a good example of the struggle to achieve both snazziness and cleanliness in these type of big corners. I really like how careful David was in avoiding any sort of glue — it's so hard to do in space like this. And STREET SMART was really nice. But nothing else was very notable — STRESSED, PRESERVE, PLANES, etc. are more neutral space-fillers to me than assets.
I did like that COHERER turned out to be all right. At first I wondered if it was one of those odd -ER words, but it does appear to be a real, albeit outdated, piece of radio technology. AMEN AMEN … I'm not a churchgoer, but do people really repeat the word in this fashion? Something more like AAA-MEN! feels more spot-on to me.
But overall, there were more good entries than I expected out of an ultra-low-word-count puzzle like this — the ones David mentioned, plus STARDATE and even FLAT RATE BOX — and very few of the ANTA (American National Theater and Academy) gluey bits. Pleasantly surprised.