| What carolers do | 16 |
| What Carole King hummed as she missed her plane? | 48 |
| What carnivores like to do after a hard day at the office? | 58 |
| What carnivores eat | 19 |
| What Carlin and Brenner do | 26 |
| What caring people give | 23 |
| What career finally did | 23 |
| What carbon monoxide lacks | 26 |
| What carbon dioxide reacts with to form carbonic acid | 53 |
| What carats measure | 19 |
| What captains and kings do | 26 |
| What Captain Kirk kept | 22 |
| What Capote called Henry James | 30 |
| What canoe is to ocean | 22 |
| What candy satisfies | 20 |
| What candles sometimes reveal | 29 |
| What candles sometimes represent | 32 |
| What candles on a cake might indicate | 37 |
| What candles may signify | 24 |
| What candles may reveal | 23 |
| What candles may represent | 26 |
| What candles at a party signify | 31 |
| What candidates stand on? | 25 |
| What candidates hit | 19 |
| What can't be parted after it's departed? | 49 |
| What can turn one into many? | 28 |
| What can take your breath away in L.A.? | 39 |
| What can produce a "boing!"? | 38 |
| What can open laterally? | 24 |
| What can open files? | 20 |
| What can one do? | 16 |
| What can help you toward a peak performance? | 44 |
| What can hang unpleasantly over a city | 38 |
| What can give you a heads-up? | 29 |
| What can get you down? | 22 |
| What can escape from a black hole | 33 |
| What can be said about the answers to this puzzle's capitalized clues | 73 |
| What can be edited with the Avogadro app | 40 |
| What can be a turnoff? | 22 |
| What campanologists do | 22 |
| What calumniators sling | 23 |
| What Calumet Farm has done | 26 |
| What calories measure | 21 |
| What Calliope might inspire | 27 |
| What calisthenics improve | 25 |
| What caliologists study | 23 |
| What California congressman heads the House Oversight Committee? | 64 |
| What Cake buys in "Italian Leather" | 45 |
| What Cagney never said in any film | 34 |
| What Caesar's "veni" means | 40 |
| What Caesar spoke | 17 |
| What Caesar said | 16 |
| What Caesar did first | 21 |
| What Caesar cast | 16 |
| What cads often spew | 20 |
| What cable TV renders unnecessary | 33 |
| What cabbies collect | 20 |
| What cabals do | 14 |
| What cabalists do | 17 |
| What cabalists cook up | 22 |
| What C.P.A.'s wish for their clients? | 41 |
| What C+C Music Factory is gonna make you do | 43 |
| What C on a boarding pass might indicate | 40 |
| What C may mean: abbr. | 22 |
| What buzzer beaters may lead to, briefly | 40 |
| What Butler didn't give | 27 |
| What busy people are on? | 24 |
| What busy people are on | 23 |
| What busy folks are on | 22 |
| What Buster Poindexter felt | 27 |
| What Buster Douglas won: Feb. 1990 | 34 |
| What businesses try to minimize | 31 |
| What business manager does to deals | 35 |
| What Bush served | 16 |
| What Burns was to Allen | 23 |
| What Burns compared to a red red rose | 37 |
| What burglars may walk on | 25 |
| What Burger King tried to serve on a sundae in 2012 | 51 |
| What burgeoning careers do | 26 |
| What bureaucrats give | 21 |
| What buoys do on the water | 26 |
| What buoys do | 13 |
| What Bunyan grasped | 19 |
| What bumblebees collect | 23 |
| What Bugs calls Elmer | 21 |
| What Bugs Bunny often calls himself | 35 |
| What bugs are often found in | 28 |
| What bugbears do | 16 |
| What Buffy might be doing at the end of a long, hard night? | 59 |
| What Buffy does | 15 |
| What buffalo do, in song | 24 |
| What buffalo do on the range | 28 |
| What buffalo do in "Home on the Range" | 48 |
| What buffalo do | 15 |
| What bucks fawn over | 20 |
| What Brynner needn't carry | 30 |
| What Bryn Mawr College is not | 29 |
| What Brylcreem gives to hair | 28 |
| What Bryan was to Taft | 22 |
| What Brutus did to Caesar | 25 |