| System that shipped with the Zapper: Abbr. | 42 | 
| System to reduce background noise | 33 | 
| System used for most returns | 28 | 
| System used in duplicate whist | 30 | 
| System used in home decor | 25 | 
| System used on a sub | 20 | 
| System using syllogisms | 23 | 
| System utilizing grates | 23 | 
| System where "187" means "homicide" | 55 | 
| System where A = 4 | 18 | 
| System wherein "Gentlemen" looks like a "U" | 63 | 
| System with a movement-sensing controller | 41 | 
| System with a Porte de Versailles station | 41 | 
| System with a standard 22x16-meter screen | 41 | 
| System with an iconic joystick | 30 | 
| System with dots and dashes | 27 | 
| System with joysticks and paddles | 33 | 
| System with paddles and a joystick | 34 | 
| System with the REXXDUMP command | 32 | 
| System ___ Down | 15 | 
| System, so to speak | 19 | 
| System-to-system system | 23 | 
| Systematic | 10 | 
| Systematic action | 17 | 
| Systematic article | 18 | 
| Systematic design | 17 | 
| Systematic distortion | 21 | 
| Systematic routine | 18 | 
| Systematic, argumentative essays | 32 | 
| Systematic, as instructions | 27 | 
| Systematically arrange | 22 | 
| Systematically categorized one's anxieties? | 47 | 
| Systematize | 11 | 
| Systematize, as rules | 21 | 
| Systematized, as laws | 21 | 
| Systematized, in a way | 22 | 
| Systemic randomness measure | 27 | 
| Systemic suffix | 15 | 
| Systems | 7 | 
| Systems for moving liquids | 26 | 
| Systems for speakers | 20 | 
| Systems for speakers (Abbr.) | 28 | 
| Systems of principles | 21 | 
| Systems of rotating wheels? | 27 | 
| Systems of rules | 16 | 
| Systems of self-defense | 23 | 
| Systems of signals | 18 | 
| Systems of waist removal? | 25 | 
| Systems that are usually fair | 29 | 
| Systems that turn motors in time with generators | 48 | 
| Systems with Nunchuk controllers | 32 | 
| Systems ___ (computer expert) | 29 | 
| Systs. | 6 | 
| Szczecin's river | 20 | 
| Szczecin's stream | 21 | 
| Szczecin, to Germans | 20 | 
| Szechuan cooking implement | 26 | 
| Szechuan dish | 13 | 
| Szechuan sauce source | 21 | 
| Szechwan animal | 15 | 
| Szechwan city | 13 | 
| Szechwan restaurant menu promise | 32 | 
| Szechwan sauces | 15 | 
| Szmanda of "CSI" | 26 | 
| Szopelka, e.g. | 14 | 
| Szyslak behind the bar | 22 | 
| Szyslak of "The Simpsons" | 35 | 
| Szyslak of Springfield | 22 | 
| T | 1 | 
| T -- 'Tom' | 18 | 
| T = ? | 5 | 
| T addition | 10 | 
| T and Cube | 10 | 
| T and Ice | 9 | 
| T as in "Telemachus" | 30 | 
| T as in Terpsichore | 19 | 
| T as in transmission? | 21 | 
| T as in Troilus | 15 | 
| T caller | 8 | 
| T choice | 8 | 
| T designation | 13 | 
| T e l e p h o n eh a n d s e t | 30 | 
| T follower | 10 | 
| T follower? | 11 | 
| T for ____ ; or Air Canada brand | 32 | 
| T formation participant | 23 | 
| T h r e es t r i k e s ... or a description of the theme clues | 62 | 
| T in a fraternity | 17 | 
| T in a sandwich | 15 | 
| T in Sparta | 11 | 
| T in telegraphy | 15 | 
| T letters | 9 | 
| T man? | 6 | 
| T on a test | 11 | 
| T or aitch | 10 | 
| T or C follower | 15 | 
| T or F (abbr.) | 14 | 
| T or F, at times | 16 | 
| T or F, e.g. | 12 | 
| T or F, e.g. (abbr.) | 20 |