| Activity for which "it takes two" | 43 |
| Activity for young pitchers? | 28 |
| Activity for young swingers? | 28 |
| Activity from below? | 20 |
| Activity in "Ghostbusters" | 36 |
| Activity in a cage | 18 |
| Activity in a car chase | 23 |
| Activity in a darkened room | 27 |
| Activity in a hostile crowd | 27 |
| Activity in a pizzeria | 22 |
| Activity in a post–W.W. I free city? | 43 |
| Activity in a shell | 19 |
| Activity in a virtual room | 26 |
| Activity in a warehouse | 23 |
| Activity in an attic | 20 |
| Activity in which camels may be executed | 40 |
| Activity in which mountains and valleys are created | 51 |
| Activity in which nothing is going on? | 38 |
| Activity in which one takes a bow | 33 |
| Activity in which people are not playing with a full deck | 57 |
| Activity in which people get their kicks | 40 |
| Activity in which spelling counts? | 34 |
| Activity in which stakes may be laid | 36 |
| Activity in which the police may beat down a door | 49 |
| Activity in which you might bust someone's chops | 52 |
| Activity in which you might tug on an earlobe | 45 |
| Activity involving a 20-sided die, maybe: Abbr. | 47 |
| Activity involving a keyhole, perhaps | 37 |
| Activity involving a needle | 27 |
| Activity involving U-boat hopping? | 34 |
| Activity led by a park ranger, perhaps | 38 |
| Activity of a belle or bird | 27 |
| Activity of a ghost in a flat? | 30 |
| Activity of a tea-party hostess | 31 |
| Activity of an organism in response to light, e.g. | 50 |
| Activity of Andrew Carnegie | 27 |
| Activity of boatmen, bondsmen and paratroopers | 46 |
| Activity of chefs and porkbarrel politicians | 44 |
| Activity of conquerors or pacifiers | 35 |
| Activity of duvet makers? | 25 |
| Activity of many Americans | 26 |
| Activity of masons or singers | 29 |
| Activity of most puzzle constructors | 36 |
| Activity of one who's paper-trained? | 40 |
| Activity of oysters? | 20 |
| Activity of some cloning labs | 29 |
| Activity of some demons | 23 |
| Activity of some divers | 23 |
| Activity of some ghosts | 23 |
| Activity of the Sirens | 22 |
| Activity on a boardwalk | 23 |
| Activity on a court | 19 |
| Activity on a kid's place mat | 33 |
| Activity on a mat | 17 |
| Activity on a placemat | 22 |
| Activity on a range | 19 |
| Activity on a strip | 19 |
| Activity on Dec. 31 | 19 |
| Activity on eBay | 16 |
| Activity on horseback | 21 |
| Activity on Inauguration Day | 28 |
| Activity on NBA highlight reels | 31 |
| Activity on Qom courses? | 24 |
| Activity on Yom Kippur | 22 |
| Activity portrayed in 2013's "Gravity" | 52 |
| Activity preceding liftoff | 26 |
| Activity requiring four bishops | 31 |
| Activity requiring three walls | 30 |
| Activity resulting in a net gain? | 33 |
| Activity studied in onomastics | 30 |
| Activity suggested by this puzzle's theme entries | 53 |
| Activity that can wreck a hard disk | 35 |
| Activity that can wreck a hard disk? | 36 |
| Activity that destroys a hard disk | 34 |
| Activity that destroys a hard disk? | 35 |
| Activity that improves the well-being of canines | 48 |
| Activity that in five years you're going to be embarrassed you were so into today | 85 |
| Activity that includes knocking | 31 |
| Activity that includes roundhouse kicks | 39 |
| Activity that involves seeing people? | 37 |
| Activity that may include flowers and candy | 43 |
| Activity that may put you over a barrel | 39 |
| Activity that may require a lift | 32 |
| Activity that proceeds hand to hand? | 36 |
| Activity that requires powder on the face? | 42 |
| Activity that's not without interest | 40 |
| Activity with a downward-facing dog | 35 |
| Activity with a list | 20 |
| Activity with bubbles | 21 |
| Activity with chops and kicks | 29 |
| Activity with dolls | 19 |
| Activity with flags | 19 |
| Activity with holding and throwing | 34 |
| Activity with positions | 23 |
| Activity with quite a drawing | 29 |
| Activity with traps | 19 |
| Activity-filled | 15 |
| Activity-filled summer getaway places | 37 |
| Actor | 5 |
| Actor (1934), actor (1995) | 26 |