___ diagram (logician's tool)
Where a merit badge might go
Warren denizen
Vertical graph lines
Vatican A-lister
The old man
Test pilot's realm
Tea servers
Sum up
Subj. studied by Neil deGrasse Tyson
Sportsman in some Hemingway novels
Spanish red wine
Spacious
Soggy spot
Snake's target, perhaps
Snake's target, perhaps
Seventh Greek letter
Sealed off
Scientist Brahe who had part of his nose cut off in a duel
Retreat with whirlpools, perhaps
Place of pressure
Phrase of gratitude often seen in abbreviated form
Pet rock, e.g
Parental imperative
Org. of school supporters
One of the Marx Brothers
One of equal standing
Not well-made
NBA center inducted into the Hall of Fame in 2016
Native American leader
Mythical Greek vessel
Moscow ballet company
Mideastern pilgrimage
Mello Yello competitor
Many an MIT undergrad
Make a faux pas
Lump of goo
Low-hanging fruit at the ends of 21-, 23-, 28-, and 33-Down
Loses altitude
Lone Star State battle site
Level
Letters after a lawyer's name
Lead singer of the Pussycats
Krispy ___ (doughnut place)
It might get you up a bunny hill
Hosts, briefly
Harmonize
Great ___ (Atlantic island)
Goofy person
Golden Arches sandwich, once in a while
Gershwin of note
Fort ___ (area in California)
Force on Earth, briefly
Fax forerunner
Duck prized for its down
Dianne of 'Law & Order'
David who directed four Harry Potter movies
Cryptanalysis org
Chow down
Chinese leader who met with Nixon
Checked a box, perhaps
Character in many a tweet
Chanel fragrance for men
Buildup in some mouths
Bounce on the infield
Bloke
Barely beat
Bad thing to draw
Back muscle, briefly
Assented
Apple introduction of 1998
Ancient written artifacts
'What's up?'
'That's the stuff!'
'That's so cool!'
'Shoot over a message later!'
'Ish'