puzzle

 ACROSS

  1 You may feed them bread crumbs

  6 Ring or group at a wedding

 10 Select, with "for"

 13 Ultimate object

 15 Move like lava

 16 Where rusty nails may get you hammered

 17 "Dunno"

 18 Like an inevitable conclusion

 20 Rainbow shapes

 22 Certain retired professor's title

 23 Attention-getting sound

 26 Whole lot

 28 Degraded

 29 Coffee, slangily

 30 Wedding

 32 "___ be a pleasure"

 33 Personification

 35 Noble below a viscount

 37 Gives a new title

 39 Mice and the like

 43 Footnote abbr.

 45 ___ disease (gluten issue)

 46 "Silent" president's nickname

 48 "Don't worry about that"

 50 Jazz great Jones

 51 Impressive spread?

 53 Leopard print source?

 54 Sleeveless garment

 55 Narrow fissure

 57 Hurricane relief org.

 59 "Supposedly ..."

 61 Eases

 65 Alternative to "com" or "org"

 66 One may be juiced for salsa

 67 Founder of Taoism

 68 Some Mustangs

 69 Footnote abbr.

 70 Secret meeting

DOWN



  1 Thieves' place

  2 Card game with a Spanish name

  3 Atlanta-based health org.

  4 *Greek morsel with a meaty texture (see letters 9 to 7 in this answer)

  5 Insulting comment

  6 Lifelong pal, briefly

  7 Balm ingredient

  8 *Longtime cover artist for The Saturday Evening Post (9 to 6)

  9 Social misfit

 10 Player of a high woodwind

 11 Breathed hard

 12 Tire pattern

 14 *Tour for a speaker (10 to 7)

 19 Farmer's storage facility, and a hint to the starred answers' backward hidden words

 21 Isaac, to Abraham

 23 Slightly open

 24 "I ___ an idea!"

 25 Third baseman Longoria

 27 Pen point

 31 Stick in the water?

 34 Roadie's armful

 36 Poem of praise

 38 Enjoy an easy chair

 40 Dark time, informally

 41 Pics that may be matching

 42 "Skedaddle!"

 44 Sugar amt.

 46 What a new homeowner may rip up

 47 Turns away

 49 Clumsy person

 51 Looping in on an email

 52 Grocery store passage

 56 Watson of "Little Women"

 58 Vegetarian's no-no

 60 Sushi fish

 62 Sloppy farm area

 63 Letters on a Navy vessel

 64 ___ peeve (endless barking, perhaps)

solution