Historical clue formulations

• Perfect attendance spoiler — 2019-01-07
• Void — 2016-11-10
• Lack — 2016-04-10
• Failure to appear — 2012-11-12
• It may be excused — 2010-09-23
• Report card notation — 2008-06-25
• Lack — 2005-05-01
• Truancy — 1998-02-28
• It makes the heart grow fonder — 1998-02-16
• "___ makes the heart..." — 1997-02-03
• Lack — 1996-04-06