Historical clue formulations

• Flip — 2026-09-18
• Flip out … or a hint to the beginnings of 17-, 27-, 39- and 51-Across — 2026-09-14
• Flip — 2026-05-02
• Lose it — 2025-06-08
• Get wildly enthusiastic — 2023-10-07
• Flip out — 2019-11-12
• Flip out — 2014-05-31
• Flip — 2012-06-09
• Run wild — 2012-04-06
• Wig out — 2010-06-03