| Quad bosses: Abbr. | 18 |
| Quad building | 13 |
| Quad celeb | 10 |
| Quad Cities city | 16 |
| Quad Cities setting | 19 |
| Quad City home to the Mississippi Valley Blues Festival | 55 |
| Quad City that's home to the Mississippi Valley Blues Festival | 66 |
| Quad digs | 9 |
| Quad figure | 11 |
| Quad hot shot | 13 |
| Quad hotshot | 12 |
| Quad locale | 11 |
| Quad number | 11 |
| Quad part | 9 |
| Quad quarters | 13 |
| Quad standouts | 14 |
| Quad units: Abbr. | 17 |
| Quad VIP | 8 |
| Quad wheels: Abbr. | 18 |
| Quad, e.g. | 10 |
| Quad-strengthening exercises | 28 |
| Quadragesimal period | 20 |
| Quadrangle | 10 |
| Quadrant | 8 |
| Quadrant separators | 19 |
| Quadrant sight | 14 |
| Quadrant's relatives | 24 |
| Quadrant, say | 13 |
| Quadrant-shaped cake | 20 |
| Quadraphonic halved | 19 |
| Quadraphonic predecessor | 24 |
| Quadraphonic system, say | 24 |
| Quadrat | 7 |
| Quadratic formula solution | 26 |
| Quadratic function subj. | 24 |
| Quadratics and such | 19 |
| Quadrel | 7 |
| Quadrennial address | 19 |
| Quadrennial athlete | 19 |
| Quadrennial athletic event | 26 |
| Quadrennial candidate Harold | 28 |
| Quadrennial candidate of old | 28 |
| Quadrennial college | 19 |
| Quadrennial competitions | 24 |
| Quadrennial contest since 1896 | 30 |
| Quadrennial conventiongoer | 26 |
| Quadrennial event | 17 |
| Quadrennial events | 18 |
| Quadrennial gala | 16 |
| Quadrennial games | 17 |
| Quadrennial games grp. | 22 |
| Quadrennial games org. | 22 |
| Quadrennial Iowa event | 22 |
| Quadrennial mathematics awards | 30 |
| Quadrennial national rite | 25 |
| Quadrennial observation | 23 |
| Quadrennial occasion celebrated by this puzzle's theme entries | 66 |
| Quadrennial occurrence | 22 |
| Quadrennial pol. assembly | 25 |
| Quadrennial pol. event | 22 |
| Quadrennial polit. event | 24 |
| Quadrennial soccer championship | 31 |
| Quadrennial sporting event | 26 |
| Quadrennial U.S. event | 22 |
| Quadrennial White House administration | 38 |
| Quadrennial White House party | 29 |
| Quadri minus one | 16 |
| Quadri preceder | 15 |
| Quadri- doubled | 15 |
| Quadri- less one | 16 |
| Quadri- minus one | 17 |
| Quadri- minus three | 19 |
| Quadri- plus bi- | 16 |
| Quadri- preceder | 16 |
| Quadri- times two | 17 |
| Quadriceps exercise | 19 |
| Quadriceps locale | 17 |
| Quadriceps strengthener | 23 |
| Quadrilateral fig. | 18 |
| Quadrilateral plane figure | 26 |
| Quadrilateral type | 18 |
| Quadrilateral, for example | 26 |
| Quadrille designs | 17 |
| Quadrille set | 13 |
| Quadrille, e.g. | 15 |
| Quadriplegia cause, perhaps | 27 |
| Quadruped | 9 |
| Quadruped that never runs? | 26 |
| Quadruped's parent | 22 |
| Quadruped's pop | 19 |
| Quadrupeds | 10 |
| Quadruple gold medalist, 1936 | 29 |
| Quadruple-gold winner in Berlin | 31 |
| Quadruple-platinum 2001 album | 29 |
| Quads' sites | 16 |
| Quaestor under Scipio | 21 |
| Quaestor's cousin | 21 |
| Quaff | 5 |
| Quaff for a special day | 23 |
| Quaff for Andy Capp | 19 |