| Structural damage caused by cyclic loading | 42 |
| Structural stress on a lab vessel? | 34 |
| Structural threat for many a house | 34 |
| Structure at a castle's entrance | 36 |
| Structure built under the queen's authority | 47 |
| Structure damaged in a 1989 earthquake | 38 |
| Structure designed by Henry Bacon | 33 |
| Structure finished during Titus' reign | 42 |
| Structure for hydroelectric power | 33 |
| Structure in a children's song | 34 |
| Structure in the Louvre courtyard | 33 |
| Structure made from poles and hides | 35 |
| Structure near the thyroid gland | 32 |
| Structure on San Antonio's city flag | 40 |
| Structure on the Arizona/Nevada border | 38 |
| Structure popularized by Buckminster Fuller | 43 |
| Structure preventing cattle from roaming | 40 |
| Structure that resembles a shell | 32 |
| Structure that resembles a shell in shape | 41 |
| Structure whose name might make kids giggle (3) | 47 |
| Structure with towers and parapets | 34 |
| Structure's ability to sustain defects | 42 |
| Structures at Albany, Trenton, etc. | 35 |
| Structures in the Gulf of Mexico | 32 |
| Structures like the Washington Monument | 39 |
| Structures where air is blown at high velocities | 48 |
| Struggle (through), as a tedious book | 37 |
| Struggle painfully (over), as a decision | 40 |
| Struggle to earn, with "out" | 38 |
| Struggle to make, with "out" | 38 |
| Struggle with one's silly sisters? | 38 |
| Struggle with one's sisters? | 32 |
| Struggles between the rich and poor | 35 |
| Struggles to catch one's breath | 35 |
| Struggles to make, with "out" | 39 |
| Struggling rocker's daytime job | 35 |
| Struggling student's assistant | 34 |
| Struggling to silence an aluminum clock? | 40 |
| Struggling with middle management? | 34 |
| Strummed an old string instrument | 33 |
| Stryper "Against the ___" | 35 |
| Stryper song "Together ___" | 37 |
| Stu on "77 Sunset Strip" | 34 |
| Stuart ___, U.S. artist: 1908–74 | 39 |
| Stubbed cigar, or a migratory bird | 34 |
| Stubborn child's defiant challenge | 38 |
| Stubborn pair in a Dr. Seuss story | 34 |
| Stubborn people won't give one | 34 |
| Stubborn person getting on another's nerves? | 48 |
| Stubbornness or kindliness, e.g. | 32 |
| Stubby of "Guys and Dolls" | 36 |
| Stuck after a plane crash, maybe | 32 |
| Stuck at Buffalo Niagara Airport, perhaps | 41 |
| Stuck fabric together, in some craft projects | 45 |
| Stuck firmly with one's opinion | 35 |
| Stuck in --- (working fruitlessly) | 34 |
| Stuck one's nose where it didn't belong | 47 |
| Stuck to one's decision, formally? | 38 |
| Stuck, like a ship in the Arctic | 32 |
| Stuck-at-home-in-a-snowstorm feeling | 36 |
| Studebaker model that became a manufacturer | 43 |
| Student Accounts introducer in 2009 | 35 |
| Student at Riverdale High School since 1941 | 43 |
| Student from College Station, Texas | 35 |
| Student grant named for a senator | 33 |
| Student heroism at the University of Wisconsin? | 47 |
| Student in Gabe Kotter's class | 34 |
| Student involved in a prank, maybe | 34 |
| Student looking for summer work? | 32 |
| Student of Guillaume de Champeaux | 33 |
| Student of Miss Crump, on '60s TV | 37 |
| Student of Mr. Ray, in a 2003 animated film | 43 |
| Student of Spanish, Italian, etc. | 33 |
| Student of Titian who painted Toledo | 36 |
| Student org. active in the 1960's | 37 |
| Student taking Advanced Calculus | 32 |
| Student taking crim. pro., perhaps | 34 |
| Student teacher or medical apprentice (Var.) | 44 |
| Student who is taking Civil Procedure, probably | 47 |
| Student who might sing "Boola Boola" | 46 |
| Student who plays hooky at noon? | 32 |
| Student writing competition, briefly | 36 |
| Student's action re electives | 33 |
| Student's concern, for short | 32 |
| Student's declaration, maybe | 32 |
| Student's email address ending | 34 |
| Student's lame homework excuse | 34 |
| Student's language list, for short | 38 |
| Student's no-homework excuse | 32 |
| Student's obligations, often | 32 |
| Student's online address letters | 36 |
| Student's output in olden days | 34 |
| Student's secondary specialty | 33 |
| Student's Web address ending | 32 |
| Student's whereabouts, preferably | 37 |
| Student-beautician's offering? | 34 |
| Student-parent at Indiana University? | 37 |
| Student-teacher calculation, say | 32 |
| StudentÂ’s e-mail addr. ender | 32 |
| Students may apply themselves for this | 38 |