Historical clue formulations

• Kind of kiss — 2021-12-22
• What the answer at 61-Across is written in — 2020-02-16
• Q3 — 2012-09-13
• Word that can precede the starts of 20-, 28-, 46- and 57-Across — 2009-08-11
• With 69-Across, burger go-with — 2007-10-18
• Word that can precede the start of 20-, 35-, 43- or 58-Across — 2005-04-25