| Text | Length |
| Concern for Hershiser | 21 |
| Cenozoic or Paleozoic | 21 |
| Caesarean or Augustan | 21 |
| Big name in detergent | 21 |
| Big name in brokering | 21 |
| Big Band for example | 21 |
| A fixed point in time | 21 |
| Get rid of completely | 21 |
| Big Band and Gaslight | 21 |
| Mesozoic and Cenozoic | 21 |
| Significant stretches | 21 |
| Some historical spans | 21 |
| Significant timespans | 21 |
| Historic time periods | 21 |
| Geological time spans | 21 |
| Cenozoic and Mesozoic | 21 |
| Baroque and classical | 21 |
| Times to live through | 21 |
| Diocletian and Julian | 21 |
| Timeline units, often | 21 |
| They may span decades | 21 |
| Theme-dominated times | 21 |
| Succession of history | 21 |
| Stages in development | 21 |
| Spring training stats | 21 |
| Regency and Victorian | 21 |
| Radio and Disco, e.g. | 21 |
| Periods of importance | 21 |
| History-book chapters | 21 |
| Historical succession | 21 |
| Historians' study | 21 |
| Greek and Roman, e.g. | 21 |
| Distinctive stretches | 21 |
| Concerns for pitchers | 21 |
| Christian and Abraham | 21 |
| Cenozoic and Big Band | 21 |
| Big slices of history | 21 |
| Not permanent, as ink | 21 |
| Go back to square one | 21 |
| Opposite of pencil in | 21 |
| Wipe, as a blackboard | 21 |
| Use the backspace key | 21 |
| Wipe the slate clean? | 21 |
| Remove from the board | 21 |
| Nullify the effect of | 21 |
| Wipe off a blackboard | 21 |
| Use the unleaded part | 21 |
| Take sound off a tape | 21 |
| Remove, as recordings | 21 |
| Remove, as characters | 21 |
| Remove from the drive | 21 |
| Do a chalkboard chore | 21 |
| Cut from a log, maybe | 21 |
| Clear from a cassette | 21 |
| Gone from the program | 21 |
| Wiped the slate clean | 21 |
| Liquidated, as a hood | 21 |
| Demagnetized, perhaps | 21 |
| Chalkboard complement | 21 |
| Thing taken to a slip | 21 |
| Point's opposite? | 21 |
| Mechanical pencil end | 21 |
| It goes by the boards | 21 |
| They get the lead out | 21 |
| They remove bad marks | 21 |
| They clear the boards | 21 |
| Chalk-dust collectors | 21 |
| After-school workers? | 21 |
| After school workers? | 21 |
| Clears the blackboard | 21 |
| Cleans the blackboard | 21 |
| Readies for refilling | 21 |
| Lifts off, to typists | 21 |
| Cleans the chalkboard | 21 |
| Start of a correction | 21 |
| Page smudge, possibly | 21 |
| Evidence of a mistake | 21 |
| Error's aftermath | 21 |
| Chalkboard correction | 21 |
| Â Â Elimination | 21 |
| Evidence of revisions | 21 |
| Blank spaces, perhaps | 21 |
| Quod __ demonstrandum | 21 |
| Was at the Colosseum? | 21 |
| First-year-Latin word | 21 |
| Wordsworth's Muse | 21 |
| Troubadour's Muse | 21 |
| Lord Byron's Muse | 21 |
| A sister of Melpomene | 21 |
| One of the nine Muses | 21 |
| Greek poet's muse | 21 |
| Daughter of Mnemosyne | 21 |
| Terpsichore's kin | 21 |
| Ode writer's Muse | 21 |
| Inspiration for Yeats | 21 |
| Ted Hughes's Muse | 21 |
| Sappho's inspirer | 21 |
| Muse of erotic poetry | 21 |
| Lyric poet's Muse | 21 |
| Inspiration for poets | 21 |
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