Historical clue formulations

• Waffle patterns — 2026-08-07
• Excel spreadsheets, essentially — 2026-02-05
• Makes mincemeat of — 2025-03-02
• "Canvases" for crossword constructors — 2023-12-19
• Many city layouts — 2020-12-09
• Plotting aids — 2015-08-15
• Crossword needs — 2014-08-26
• Quadrille designs — 2007-04-08
• Triode parts — 2005-06-25
• Radar screen features — 2001-09-11
• Air traffic controllers stare at them — 2000-07-26
• Diagrams — 1998-02-24
• Diagrams — 1997-07-01
• Crossword diagrams — 1993-12-09