Fun theme today in which words for toys are combined with other words, making the revealer, THISISNOTATOY, apt. To be specific, we have MARBLECAKE, TOPPRIORITY, YOYODIETER, and perhaps least toy-like of all, RATTLESNAKE. Apt!
The puzzle played on the easy side form me - you might say I was NSYNC with co-constructors Pepper and Burnikel. I enjoyed thinking of ROMANS speaking ITALIANO INSTYLE. I also liked FANFEST, TOTALLIE, PHOTON, and EUREKA. I did enter 'clippie' at first for "Microsoft virtual assistant introduced in 2014," even though I knew the year was all wrong - sorry to UNCAP that memory for all who had managed to bury it. :| On a happier note, IRATE 1A: as today's most amusing entry: "Rapids transits?" (RAFTS) - ha! And, as a personal aside, I love CEREALS.
Sure, maybe there were a few spoil sports in the grid like NAE, AOL, and especially ETA and SLR right after each other, but constructing a puzzle isn't child's play.