puzzle

 ACROSS

  1 Bean type in succotash

  5 Walk proudly

 10 Derriere

 14 Lebanese, perhaps

 15 Indoor football format

 16 On the subject of

 17 Really fun group, it's said

 20 Gas hidden in "Marine One"

 21 Aunt, in Acapulco

 22 Green ___ (elite soldier)

 23 Some brews

 25 Pouches

 27 Porridge thief in a fairy tale

 31 Word between "talk" and "talk"

 34 "___ on a Grecian Urn" (Keats poem)

 35 Genre for Aretha Franklin

 36 Cooks, as artichokes

 39 Tourist attraction

 41 Hanoi holiday

 43 4:3, for instance

 44 Most massive

 46 Verdi opera set in Egypt

 48 Ernie known as "The Big Easy"

 49 ISP designed for Windows

 50 Uruguay's capital

 53 ___ apparent

 55 Alternatives to Wranglers

 56 Earlier

 59 Boxer Laila

 61 Part of "SNL"

 64 Protective setups suggested by the final few letters of 17-, 27- and 50-Across

 68 Places to be pampered

 69 Spanish direction opposite sur

 70 Business communication

 71 Answering machine beep

 72 Peppery salad green

 73 Big band and Prohibition

DOWN

  1 Most popular dog breed in the U.S.

  2 Country once called Persia

  3 Mule's mother

  4 Visiting Europe, say

  5 Nickname that drops "vatore"

  6 Brings forth for display

  7 New loan arrangement, briefly

  8 Reveal

  9 Chinese "way"

 10 Has an afternoon meal

 11 Person who creates a password

 12 Eye sore

 13 Be the emcee

 18 Signs up for the Army

 19 "Days of Our Lives" channel

 24 "Evil Woman" band, for short

 26 Mule's father

 27 "Gee willikers!"

 28 Loathing

 29 Hosiery brand

 30 Freshly washed

 32 Had no love for

 33 Novelist Zola

 37 Commits a court offense?

 38 Neither amazing nor awful

 40 Where to hear clucking

 42 Champions

 45 Texter's "I didn't need to know that!"

 47 Actress Aisha or Sandra

 51 One on the stump

 52 "Am I to blame?"

 54 "To ___ is human"

 56 Secretive attention-getter

 57 Seized auto

 58 Confident declaration

 60 Harp's ancient relative

 62 Suddenly change direction

 63 "Late Night" star Thompson

 65 Forbes competitor

 66 No alternative?

 67 Call for help

solution