ACROSS

  1 Indicators of buns in the oven

 10 Amorphous lump

 14 Without haste

 15 Amazon Echo voice

 16 Gets started with clean energy, say

 17 Purebred dogs' opposites

 18 Rudely overlook

 19 Circus enclosure

 20 Flat-topped hills

 21 Spacecraft seen in some grainy pics

 23 Most populous city in Pakistan

 25 Was leaked

 28 Sign up

 30 Money left on the table

 31 Building blocks

 34 Lhasa ___

 35 Civil rights activist Medgar

 37 Delivery vehicle

 38 Provides a false alibi for, say

 39 "Thor" actress Russo

 40 Like some oaths

 42 "Catch my drift?"

 43 Unlucky accident

 45 You can see through it

 47 Storage structure for Earl Grey

 50 Mum's mum

 51 So last year

 52 Place for a light above a stove

 54 Per person

 58 Beehive State resident

 59 Beats decisively

 61 Mascot on Citi Field

 62 Turned away, as supporters

 63 Votes in favor

 64 They may display bow ties

DOWN

  1 Works at checkout

  2 Bazillions

  3 Veal cordon ___

  4 "Sure, however ..."

  5 Muscles opposite tris

  6 Private entertainment?

  7 Stubborn beast

  8 Bit of April 1 mischief

  9 Sealy rival

 10 Chesapeake Bay catch

 11 "Knock on wood!"

 12 Slow-cooked Jamaican beef dish

 13 Deep voice

 15 World capital spelled from the same letters as Bahrain's capital, Manama

 22 Keyless car starters

 24 Low-___ images

 25 "C'mon, take a bite!"

 26 Ali Baba's magic words

 27 Save on a certain DVR

 29 Come in last

 30 Stretch in office

 32 Berkeley school, for short

 33 Was aware of

 36 Discusses again

 38 ___ May Wong (first Chinese-American movie star)

 40 Place you might be kneaded

 41 "Fixed" or "growth" attitude

 44 "___ you sweet!"

 46 Paternity test facility

 48 Tightfisted

 49 "Bear" that eats eucalyptus leaves

 51 Deer-hunting feline

 53 Singer Rush or Redding

 55 Pocket bread

 56 Walkie-talkie message ending

 57 People on foot, briefly

 60 Santa ___ winds