Historical clue formulations

• Mentally nimble — 2026-06-28
• Witty — 2018-10-11
• Quick — 2015-03-19
• Witty — 2009-08-17
• Ingenious — 2008-04-09
• Nimble-minded — 2007-01-23
• Artful — 2004-08-22
• Like crossword solvers — 2001-08-22
• Sharp — 1999-01-29
• Like bons mots — 1998-10-03
• Witty — 1997-11-05