Historical clue formulations

• Like BFFs — 2019-06-09
• Too small, possibly — 2016-12-30
• Like best buds — 2016-08-18
• Like skinny jeans — 2016-03-30
• Like the best of friends — 2015-03-07
• See 5-Across — 2015-01-21
• Like best friends — 2012-05-12
• Very friendly (with) — 2010-04-25
• ___ as a drum — 2009-04-28
• Like best buds — 2007-06-02
• Close — 2007-05-20
• Constraining — 2006-09-14
• Too snug — 2002-03-05
• Affording no leeway — 2001-10-07
• Close — 1999-11-19
• Cramped — 1995-08-27
• Packed closely — 1994-06-15