Historical clue formulations

• Support — 2024-03-31
• Front's opposite — 2024-02-12
• What a left arrow might mean — 2022-06-02
• Kind of gorilla — 2021-09-16
• Browser command — 2021-04-17
• Lower-priced edition of a book — 2020-09-23
• In town again — 2019-10-22
• With 28-Down, part of a golf course — 2019-04-22
• Front's opposite — 2018-02-12
• Bet on — 2012-09-09
• Word that can follow the start of 20-, 38- or 50-Across — 2011-09-26
• Support — 2011-08-04
• Involuntary extension of troop tours — 2011-05-29
• Support — 2007-06-21
• Missing word in 21-, 31-, 40- and 50-Across, applied literally — 2007-05-31
• Endorse — 2006-06-25
• See 8-Down — 2004-09-25
• With 118-Across, subject of an I.R.S. request — 2003-10-12
• Front's opposite — 2002-10-28
• Safety, for one — 2000-11-08
• See 1-Down — 1999-06-10
• Safety, e.g. — 1998-02-12
• Support — 1997-06-03
• Support — 1995-02-02