| Sign-up book for races? | 23 |
| Signal "Hello!" | 25 |
| Signal again, as an actor | 25 |
| Signal agreement, in a way | 26 |
| Signal at a pagoda, maybe | 25 |
| Signal at a séance, maybe | 28 |
| Signal at Christie's | 24 |
| Signal at Sotheby's | 23 |
| Signal “Hello!” | 23 |
| Signal for a good samaritan | 27 |
| Signal for an act to end | 24 |
| Signal from a note passer | 25 |
| Signal from a sinking ship | 26 |
| Signal hello or goodbye | 23 |
| Signal of comprehension | 23 |
| Signal of imminent attack | 25 |
| Signal one's agreement | 26 |
| Signal or trooper preceder | 26 |
| Signal that danger has passed | 29 |
| Signal that starts a scramble | 29 |
| Signal to an on-call doctor | 27 |
| Signal to begin speaking | 24 |
| Signal to clear the road | 24 |
| Signal to leave a message | 25 |
| Signal to leave, perhaps | 24 |
| Signal to start partying? | 25 |
| Signal to start talking | 23 |
| Signal to stop playing | 22 |
| Signal to the auctioneer | 24 |
| Signal to try to score | 22 |
| Signal-carrying, in a way | 25 |
| Signal-detecting device | 23 |
| Signaled boatswain style | 25 |
| Signaled 'hello' | 24 |
| Signaled a card holding | 23 |
| Signaled a timeout, say | 23 |
| Signaled backstage, perhaps | 27 |
| Signaled one's arrival | 26 |
| Signaled to enter, say | 22 |
| Signaled to, as a taxi | 22 |
| Signaled, on a quiz show | 24 |
| Signals at Sotheby's | 24 |
| Signals for a lane change? | 26 |
| Signals future happenings | 25 |
| Signals guiding pilots | 22 |
| Signals of what's to come | 29 |
| Signals the auctioneer | 22 |
| Signals with a head movement | 28 |
| Signals, as to an auctioneer | 28 |
| Signature at Appomattox | 23 |
| Signature authenticator | 23 |
| Signature comedy routines | 25 |
| Signature event necessity | 25 |
| Signature follower, often | 25 |
| Signature makeup, perhaps | 25 |
| Signature of a famed American | 29 |
| Signature of a general | 22 |
| Signature of a publisher | 24 |
| Signature of an Irish poet | 26 |
| Signature piece?: Abbr. | 23 |
| Signature song for MC Hammer | 28 |
| Signature song of Peter Allen | 29 |
| Signature wear for Astaire | 26 |
| Signatures and life jackets | 27 |
| Signatures, Ã la Harpo | 25 |
| Signed a treaty, perhaps | 24 |
| Signed as an illiterate would | 29 |
| Signed like an illiterate | 25 |
| Signed on for another hitch | 27 |
| Signed on the dotted line | 25 |
| Signed one's name to | 24 |
| Signed up for the marathon | 26 |
| Signed up for, as a contest | 27 |
| Signed, as a check, maybe | 25 |
| Signer of $1 bills, etc. | 24 |
| Signer of a holiday bill | 24 |
| Signer of the UN charter | 24 |
| Signer's implement | 22 |
| Signers of the Declaration | 26 |
| Signet-bearing jewelry | 22 |
| Significant achievements | 24 |
| Significant advancement | 23 |
| Significant amount or weight | 28 |
| Significant burst of air | 24 |
| Significant butter component | 28 |
| Significant courtroom figure | 28 |
| Significant danger to beef? | 27 |
| Significant difference | 22 |
| Significant dry spell? | 22 |
| Significant hesitation | 22 |
| Significant historical span | 27 |
| Significant impressions | 23 |
| Significant other, e.g. | 23 |
| Significant other, perhaps | 26 |
| Significant other, slangily | 27 |
| Significant party of 1773 | 25 |
| Significant period of time | 26 |
| Significant pile of stones | 26 |
| Significant stretch of time | 27 |
| Significant stretches of time | 29 |