I still managed to enjoy this one even after my years of dentist-aversion therapy. (Not surprisingly, it hasn't worked out well for my teeth.) I admit it; I'm an anti-dentite! But I enjoyed the dentist making a good FIRST IMPRESSION (ha ha, remember when the dentist got my nightguard mold stuck in my mouth?), offering a BRIDGE LOAN (and when another charged me for extra procedures I didn't ask for!), and everyone's favorite … YOU KNOW THE (shudder) DRILL!

I'm sure Mark Diehl is shaking his head at me. Sorry Mark, I'm sure you're tons better than all the terrible dentists I've gone through.
BRUSH PILES … what's a brush pile? Apparently, it's … wait for it … a pile of brush! It seems that birds are attracted to them. I have no idea how this works, but now I'm eager to go try it out. With wood-type brush, that is, not dentist-type brushes.
Unique black square pattern, those chunks in the middle odd-looking. They did allow Sam to work in some very nice seven-letter bonus entries, PASSKEY, AIRCREW, WHISKAS, and … RESLIDE. Sam, really?! Sam often takes the "go big or go home" approach, and I don't mind seeing a bit of OYEZ and PLAT to get some very nice CRACK UP, AGILITY, GO KAPUT, OPUS DEI. It's just such a shame to fill a precious seven-letter slot with a baserunner going back to first and trying to RESLIDE back into second. Or something like that.
With some AGRI, ERST, LEK, MUS, TRE in there too, it was too much crossword glue for me overall. But I do like how much snazzy bonus material Sam jammed in. Not sure why WHISKAS makes me CRACK UP, but it does.
Love the SOFA clue — [Loose change "collector"] feels Donaldson-esque. Nice to get a little of a constructor's personality in his/her puzzle.
I still have a long way to go in getting over my anti-dentite ways, and Sam's inspired me to try harder. I know the drill …