Puzzle

 ACROSS

  1 Apple tablet

  5 Got on in years

  9 Films with many extras, often

 14 Burkina Faso neighbor

 15 Indian flatbread

 16 Investigate

 17 Food thickener

 18 Low pair of cards

 19 One stays upright after being flipped

 20 Especially close match (see letters 6 to 10)

 23 "Non-musician" Brian

 24 Buddy

 25 Like a certain Freudian complex

 29 Compensated for working extra hours (4 to 7)

 31 Microblogging site

 34 Ward of "CSI: NY"

 35 Fall behind

 36 Maker of thin PCs

 37 Midpoint: Abbr.

 38 Actress Anderson

 39 AOC or Mayor Pete

 40 Word after "snow" or "spare"

 42 Targeted in archery

 44 British meal that may be served at 4 p.m. (3 to 6)

 47 Committed at the altar

 48 Keep an ___ to the ground

 49 Granola grain

 52 NHL legend dubbed "The Great One" (5 to 9)

 55 Registration table item

 58 Cheese that's made in reverse?

 59 Churn up

 60 Bond portrayer Roger

 61 Moreno of "West Side Story"

 62 Poker pot starter

 63 Many vegetables, initially

 64 Fitbit unit

 65 Orbital period

DOWN

  1 Likeness

  2 Idol worshipper, perhaps

  3 Rental car company

  4 Beyond serious

  5 Work event?

  6 Cheer loudly, like a crowd

  7 Boys' school in Berkshire

  8 Unearth

  9 Banned diet pill ingredient

 10 "Cheers!" at Oktoberfest

 11 "Will pay later" letters

 12 Cronkite's longtime network

 13 Witness

 21 Milky gemstone

 22 End of a loaf or loafer

 26 One working in plane clothes?

 27 Maytag competitor

 28 On the up-and-up

 29 "Nova" network

 30 Bone: Prefix

 31 Spanish small bites

 32 Stars-and-stripes land, for short

 33 Prefix for "task"

 37 Singers with silky voices

 38 Mauna ___

 40 Prioritizes, in a sense

 41 ___ 500

 42 Handout at a planetarium

 43 Not there?

 45 Prince ___ Island

 46 Make null and void

 49 Layer that absorbs ultraviolet radiation

 50 Japanese dog breed

 51 Tenth president

 53 Mark up with a red pencil, say

 54 44-Across platter

 55 Online chat parts, briefly

 56 Bambi's mother, e.g.

 57 ___ the line

Solution