Historical clue formulations

• Spirits — 2021-10-10
• Team spirit — 2020-12-06
• Team spirit — 2020-03-18
• Mood around the office — 2018-06-14
• Something to keep up — 2017-12-01
• A pep talk might boost it — 2017-03-14
• A pep talk may boost it — 2017-01-18
• Team esteem — 2016-05-10
• Something to boost — 2016-02-28
• It may be raised in a company's new building — 2014-09-25
• Coaching concern — 2013-03-01
• Esprit de corps — 2012-09-10
• Esprit de corps — 2011-06-08
• A pep talk may boost it — 2009-12-08
• U.S.O. shows boost it — 2009-05-10
• Team esteem — 2009-04-30
• It may need boosting — 2009-02-25
• What boosters boost — 2008-10-17
• It may need a boost — 2001-11-16
• Spirit — 2001-05-02
• General concern — 2000-01-30
• It should be raised on a ship — 1999-11-15
• It sometimes needs boosting — 1999-07-22
• Esprit de corps — 1998-01-15
• U.S.O.'s concern — 1996-12-28