Historical clue formulations

• Approves — 2023-11-29
• Permissions — 2023-07-07
• Approves — 2021-08-08
• Gives a thumbs-up — 2021-06-21
• Signs off on — 2019-12-22
• Gives a 16-Across — 2019-08-31
• Gives the go-ahead — 2018-06-12
• Gives the go-ahead — 2017-05-22
• Initials, perhaps — 2015-12-18
• Approves — 2014-10-27
• Assents — 2014-05-04
• Green-lights — 2010-01-18
• Sanctions — 2008-12-06
• Gives the go-ahead — 2007-01-29
• Gives the go-ahead — 2006-12-19
• Green-lights — 2006-03-13
• Signs off on — 2006-02-23
• Initials — 2004-10-16
• Sanctions — 2004-09-05
• Approves — 2004-06-24
• Approves — 2001-07-04
• Signs off on — 2001-06-22
• Approves — 2000-05-03
• Initials, maybe — 1999-11-14
• Sanctions — 1999-09-25
• Sanctions — 1999-05-13
• Rubber-stamps — 1998-10-07
• Authorizes — 1995-01-21
• Initials, maybe — 1994-07-17