Puzzle

 ACROSS

  1 Geometry calculation

  5 Apt name for a 23andMe employee

  9 Largest member of the dolphin family

 13 50%

 14 Felt ill

 15 Washerful

 16 The tech-savvy builder ___

 19 Crumble over time

 20 Keg feature

 21 Riot squad's substance

 24 Button-shaped chocolate

 28 Use for support

 29 Pittsburgh NFL team

 32 Bungee jumper's hashtag, perhaps

 33 "Great" guy

 34 Brain wave test: Abbr.

 35 The tech-savvy midwife ___

 39 Feathery neckwear

 41 Amounts of paper

 42 ___ Romeo (Italian car)

 45 Have as a boss

 47 Super 8 and others

 49 Post-op program

 50 Hits the gym

 51 Outdoor clothing store

 53 Gaiety

 54 The tech-savvy doctor ___

 61 Hamilton's nemesis

 62 It's a long story

 63 Diet hidden in "pancake toppings"

 64 "___ woke!"

 65 Cannon garments

 66 12/24 and 12/31

DOWN

  1 Sushi bar tuna

  2 Published, as a story

  3 Golfer Ernie

  4 Polite opening line?

  5 Covers in shiny leaf

  6 Anyone ___ (not you)

  7 Just-purchased

  8 Peer review suggestion

  9 First mate, say?

 10 "Winnie-the-Pooh" youngling

 11 Crow's cry

 12 Pop-ups and such

 14 Take out ___ (borrow)

 17 Best Picture winner after "The Artist"

 18 Appoint for

 21 Give it a go

 22 Fair-hiring inits.

 23 Appealing kind of offer for a home seller

 25 Christmas tree detritus

 26 Rap pioneer Mac ___

 27 Food additive letters

 29 Joe ___ (average guy)

 30 Tips of boots

 31 Yada, yada, yada, for short

 33 RBI or ERA

 36 His job's in "Jeopardy!"

 37 Spanish for "to be"

 38 Federal Reserve increase

 39 Happy hour haunt

 40 Tip jar bill

 43 Seasonal ailment

 44 Nile viper

 46 Battle call

 47 Fable takeaway

 48 Where to see Samantha Bee

 50 Auto shop buys

 52 "This ___ funny"

 53 Relocate

 54 Eye logo network

 55 Dwelling that might be made of mud

 56 Timeline part

 57 Adversary

 58 Gun, as an engine

 59 Uintah and Ouray Reservation dweller

 60 Castaway's message

Solution