| Answer | Crossword Clue |
|---|---|
| BRAIN | Smart one |
| ALEC | Smart one? |
| ALECK | Smart one? |
| ALEC | "Smart" one |
| ALECK | Smart one |
| ALEC | Smart one |
| MENSAN | Smart one |
| SASSER | Smart one |
| BEL | ... esprit: smart one |
| ALEC | Smart one: var. |
| BEL | ... esprit : smart one |
| BRAIN | Smart one, informally |
| SPY | Smart, for one |
| WISEACRE | One who's smart? |
| AGENT | Maxwell Smart, for one |
| STUPIDOWL | One not so smart? |
| SPY | Maxwell Smart, for one |
| MENSAN | One of the smart set |
| SAGE | One of the smart ones |
