Historical clue formulations

• "The devourer of all things," per Ovid — 2026-08-27
• Something told with two hands? — 2026-08-25
• Cry at the end of a countdown — 2026-07-18
• "Pencils down!" — 2026-03-09
• Word before piece and after peace — 2025-08-15
• Variable in the Schrödinger equation — 2025-03-14
• Proctor's cry at the end of a test — 2025-01-06
• Stat of interest to a competitive crossword solver — 2024-09-30
• "The longest distance between two places," per "The Glass Menagerie" — 2024-07-07
• One dimension — 2024-05-04
• Proctor's pronouncement — 2024-02-25
• It's money, in a saying — 2024-01-03
• "Person of the Year" magazine — 2022-10-23
• Declaration at the end of an exam — 2022-09-02
• Answer to Gollum's riddle in "The Hobbit" "This thing all things devours: Birds, beasts, trees, flowers ..." — 2022-02-14
• Hard thing to do? — 2022-01-09
• Denominator in the velocity formula — 2021-10-10
• "Put your pencils down!" — 2021-09-08
• It's irreversible — 2021-05-23
• "Lost ___ is never found again": Benjamin Franklin — 2020-12-20
• Proctor's call — 2020-10-13
• With 1-Down, company named for two magazines — 2020-08-19
• "Nature's great healer," per Seneca — 2020-01-02
• "Pencils down!" — 2019-09-01
• Proctor's declaration — 2019-06-01
• What clocks keep — 2019-03-11
• Something you might need to kill — 2018-12-30
• What inmates do until they're released — 2018-10-24
• Show of hands? — 2018-06-22
• "Stop! Turn your papers over" — 2018-06-15
• Marathoner's focus — 2018-03-16
• It can crawl or fly, but not walk — 2017-07-29
• "Pencils down!" — 2017-03-12
• Magazine with a "Person of the Year" — 2016-05-16
• Exact — 2015-11-22
• "What we want most, but what, alas! we use worst," per William Penn — 2015-10-18
• Use a stopwatch on — 2015-04-13
• You may find it on your hands or side — 2015-02-08
• Cons do it — 2014-12-24
• See 32-Across — 2014-10-22
• "Pencils down!" — 2014-10-04
• See 27-Across — 2013-08-01
• Magazine whose cover has a red border — 2013-07-29
• ___ 100 (annual list) — 2013-07-11
• *Cons do it — 2012-12-10
• It's often shown with hands — 2012-03-31
• A metronome keeps it — 2011-05-23
• It can be bought without money — 2011-03-19
• Use a stop clock on — 2010-09-20
• "The great instructor," per Edmund Burke — 2010-08-18