| System developed at Bell Labs | 29 |
| Syst. with hand signals | 23 |
| Syst. of unwritten words | 24 |
| Syst. of unspoken words | 23 |
| Syst. of sound syllables | 24 |
| Syst. for sharing ideas | 23 |
| Sysadmins may run them | 22 |
| Syrup, before processing | 24 |
| Syrup used in some fake blood | 29 |
| Syrup source for marshmallows | 29 |
| Syrup presented to the jury? | 28 |
| Syrup in the medicine cabinet | 29 |
| Syrup for pecan pie, perhaps | 28 |
| Syrup for a poisoning victim | 28 |
| Syringes' contents | 22 |
| Syringe units, briefly | 22 |
| Syringe measures, for short | 27 |
| Syringe measurements: abbr. | 27 |
| Syringe dosage units, briefly | 29 |
| Syringe contents, sometimes | 27 |
| Syringe contents, perhaps | 25 |
| Syringa by another name | 23 |
| Syrian-Lebanese sect member | 27 |
| Syrian's Supreme Being | 26 |
| Syrian V.I.P. and family | 24 |
| Syrian singer Souleyman | 23 |
| Syrian sect member (Var.) | 25 |
| Syrian presidential family | 26 |
| Syrian president Bashar | 23 |
| Syrian or Yemeni, e.g. | 22 |
| Syrian leader Hafez al-___ | 26 |
| Syrian irrigation source | 24 |
| Syrian city, to the French | 26 |
| Syrian city, to Frenchmen | 25 |
| Syrian city, to French | 22 |
| Syrian city, to a Parisian | 26 |
| Syrian city of 2.5+ million | 27 |
| Syrian city of 2 million | 24 |
| Syrian chief and namesakes | 26 |
| Syria, Lebanon, Israel, etc. | 28 |
| Syria, Lebanon and neighbors | 28 |
| Syria, in Biblical days | 23 |
| Syria's Hafez al-___ | 24 |
| Syria's Hafez al- -- | 24 |
| Syria's Bashar al-___ | 25 |
| Syria's Bashar al-__ | 24 |
| Syria in ancient times | 22 |
| Syracuse-to-Utica dir. | 22 |
| Syracuse-to-Albany dir. | 23 |
| Syracuse's team color | 25 |
| Syracuse University team | 24 |
| Syracuse mascot __ the Orange | 29 |
| Syracuse athletes, for short | 28 |
| Syr. seceded from it in 1961 | 28 |
| Synthpop group ___ Noise | 25 |
| Synthetic-rubber ingredient | 27 |
| Synthetic textile fiber | 23 |
| Synthetic sock textile | 22 |
| Synthetic rubber, for one | 25 |
| Synthetic rubber ingredient | 27 |
| Synthetic rubber compounds | 26 |
| Synthetic rubber component | 26 |
| Synthetic rubber bases | 22 |
| Synthetic resin used in paint | 29 |
| Synthetic purplish colorant | 27 |
| Synthetic jacket fabrics | 24 |
| Synthetic fuel sources | 22 |
| Synthetic fabrics, for short | 28 |
| Synthetic fabric brand | 22 |
| Synthetic estrogen, for short | 29 |
| Synthetic akin to rayon | 23 |
| Synthetic acrylic fiber | 23 |
| Synthesizer virtuoso Brian | 26 |
| Synthesizer pioneer Robert | 26 |
| Synthesizer inventor Robert | 27 |
| Synthesizer innovator Bob | 25 |
| Synthesizer designer Robert | 27 |
| Syntax auditors: Abbr. | 22 |
| Syntactical incoherence | 23 |
| Synopsis starter and ender? | 27 |
| Synopsis starter and ender | 26 |
| Synonymous rhyme for cache | 26 |
| Synonym-loving physician | 24 |
| Synonym of choke and joke | 25 |
| Synonym and anagram for tuna | 28 |
| Synod site: 15th century | 24 |
| Syngman ___ of S. Korea | 23 |
| Syngman of South Korea | 22 |
| Synge or O'Casey work | 25 |
| Syndication departure of 2011 | 29 |
| Syndicated TV disco show | 24 |
| Syndicated trashy gossip show | 29 |
| Syndicated sportswriter | 23 |
| Syndicated sitcom channel | 25 |
| Syndicated radio host John | 26 |
| Syndicated gossip show | 22 |
| Syndicated columnist Goldberg | 29 |
| Syndicated astrologer Sydney | 28 |
| Syncopated musical work | 23 |
| Syncopated musical rhythms | 26 |