EGAD, this was a tough nut for this solver to crack. That's to be expected on a Saturday, I suppose, but man, parts of it gave me AMAJOR pain in the brain. On my first pass, the only answers I got immediately and with a fair degree of confidence were "Tool used on a padlock" (BOLTCUTTER), "Acrobat's platform" (ADOBE), "Bee activity" (SEWING), and "Pen pal's request" (WRITEME). Thanks to the two successes in the southwest, that corner fell first.
Elsewhere, in several cases, I had the right idea for the answer, but the wrong word. I started with 'caN' instead of TIN at 5A, 'Yog' instead of YRS at 46A, 'eta' instead of ARR at 8D - and, as an aside, 'eta' instead of nothing, which is what I had until I finally figured out where the emphasis was meant to go in the clue, and that goes ditto for the nearby "Grand standing" (PRESTIGE) - 'GOahead' instead of GOFORIT at 40D, and 'intestine' instead of PVCPIPING for "Makeup of some waste lines." Yes, I went there.
Other clues that were real attention GETTERs:
The emperor's old clothes? (TOGAS)
"Came down hard (on)" (POURED)
"V formation" (NECKLINE)
There were several things I didn't know such as BEERLEAGUE, TARPONS, and "Conference foes of the Buffaloes." For that one, I tried epee, item, and olio, but it was no UTES.
At 15A, "Number six in a group of five" was a valiant effort to boost ESP, but I didn't love it. OMEGAS (Series finales) wasn't high on my list either. "Lux. locale" (EUR) wasn't a favorite, either. In fact, that whole row is a little weak. The southern row of threes, on the other hand, was better, especially FIB for "'This tastes delicious!,' maybe." LOL.
It's been a fine week of puzzles, if on the tough side for this MIR mortal. I've VALUED our time together, but now it's time to EAVE things in better hands. GOFORIT Colum. YOLO!