| Four-leaf clover, for some | 26 |
| Four-leaf clover cousin | 23 |
| Four-leaf clover | 16 |
| Four-kind connector | 19 |
| Four-inch measure | 17 |
| Four-in-___ | 11 |
| Four-in-hands for a polyglot? | 29 |
| Four-in-hand, for one | 21 |
| Four-in-hand, e.g. | 18 |
| Four-in-hand strap | 18 |
| Four-in-hand kin | 16 |
| Four-in-hand | 12 |
| Four-in-a-row U.S. Open winner | 30 |
| Four-hour tests | 15 |
| Four-handed poker games? | 24 |
| Four-handed piano tune | 22 |
| Four-handed piano pieces | 24 |
| Four-handed piano piece by a French emperor? | 44 |
| Four-handed exercise | 20 |
| Four-handed card game | 21 |
| Four-hand piano work | 20 |
| Four-hand piano pieces | 22 |
| Four-hand piano piece | 21 |
| Four-Grammy winner of 2006 | 26 |
| Four-four, e.g. | 15 |
| Four-footers | 12 |
| Four-footer on the Neverland ranch | 34 |
| Four-footed TV star | 19 |
| Four-footed parents | 19 |
| Four-footed mothers | 19 |
| Four-footed moms | 16 |
| Four-footed mammal | 18 |
| Four-footed lowlife | 19 |
| Four-footed furry friends | 25 |
| Four-footed friends | 19 |
| Four-footed friend | 18 |
| Four-footed fathers | 19 |
| Four-footed family member | 25 |
| Four-footed adventurer from Kansas | 34 |
| Four-foot bike | 14 |
| Four-food chain | 15 |
| Four-flushers | 13 |
| Four-flusher | 12 |
| Four-fifths of the atmosphere | 29 |
| Four-fifths of diez | 19 |
| Four-faced peak | 15 |
| Four-F's opposite, in the draft | 35 |
| Four-eyes features | 18 |
| Four-door, often | 16 |
| Four-door vehicle | 17 |
| Four-door flop | 14 |
| Four-door cars | 14 |
| Four-door car | 13 |
| Four-door automobiles? | 22 |
| Four-door alternative | 21 |
| Four-door | 9 |
| Four-dimensional realm | 22 |
| Four-dimensional figure | 23 |
| Four-digit number, at the ATM | 29 |
| Four-day weekend time, for many: Abbr. | 38 |
| Four-couple sect? | 17 |
| Four-couple combo | 17 |
| Four-couple activity | 20 |
| Four-cornered sail | 18 |
| Four-cornered chips | 19 |
| Four-chambered organ | 20 |
| Four-book series by Paul Scott, with "The" | 52 |
| Four-baggers: Abbr. | 19 |
| Four-baggers, briefly | 21 |
| Four-baggers | 12 |
| Four-bagger | 11 |
| Four-armed Hindu goddess | 24 |
| Four-armed Hindu deity | 22 |
| Four-armed god | 14 |
| Four-armed destroyer of evil | 28 |
| Four-armed deity | 16 |
| Four-and-twenty blackbirds? | 27 |
| Four-and-twenty blackbirds' place | 37 |
| Four-alarmers, e.g. | 19 |
| Four-alarmer, e.g. | 18 |
| Four-alarm fire | 15 |
| Four-act play by George Bernard Shaw | 36 |
| Four-act Chekhov drama | 22 |
| Four- or five-star officer | 26 |
| Four, usually | 13 |
| Four, to Flavius | 16 |
| Four, to Felipe | 15 |
| Four, to 16 | 11 |
| Four, six or seven attachment | 29 |
| Four, on the phone | 18 |
| Four, on some sundials | 22 |
| Four, on some clock faces | 25 |
| Four, on phones | 15 |
| Four, often | 11 |
| Four, logically | 15 |
| Four, in prescriptions | 22 |
| Four, in Frankfurt | 18 |
| Four, for starters? | 19 |
| Four, before | 12 |
| Four+ cups | 10 |