Historical clue formulations

• Makes some calls — 2026-05-09
• Zebras in the field? — 2026-04-09
• Play callers? — 2026-02-11
• Enforcers of rules, informally — 2025-07-12
• Members of the "third team," jocularly — 2025-04-13
• Some who whistle while they work — 2024-12-21
• Penalty assessors — 2024-11-24
• Whistle blowers — 2024-11-15
• Officials showing 50-Across, informally — 2024-05-24
• Dictionaries, thesauruses, etc., informally — 2023-07-11
• Play checkers, informally — 2023-07-07
• Ones calling offsides — 2022-05-17
• N.B.A. whistle blowers — 2022-05-16
• See 58-Across — 2022-01-09
• Almanacs and atlases, for short — 2021-12-06
• Some coin tossers — 2020-12-06
• Flag tossers, informally — 2020-12-02
• Zebras — 2020-11-19
• Foul rulers — 2020-09-13
• Dict., gaz. and others — 2019-09-13
• Yellow card displayers — 2019-04-11
• Wearers of striped shirts — 2019-02-24
• Dictionaries, almanacs, etc., in brief — 2018-12-31
• Ones whistling while they work? — 2018-05-28
• Officials crying "Offside" and "Pass interference" — 2017-07-17
• Some whistle blowers — 2017-06-05
• Notable whistle blowers — 2016-08-14
• Calls — 2015-12-26
• Gridiron officials — 2015-10-26
• Gridiron officials, in brief — 2015-03-16
• Frequent targets of fan heckling — 2015-03-09
• Court V.I.P.'s — 2015-01-18
• Basketball officials, informally — 2013-12-30
• Makes calls on a basketball court — 2013-07-16
• Hand signal users — 2011-12-09
• Ones dressed in stripes, for short — 2011-11-29
• TKO callers — 2011-07-10
• Zebras — 2011-03-24
• Calls — 2010-09-04
• Umps — 2010-07-08
• Calls — 2010-01-23
• Judges — 2009-05-21
• Flag tossers, for short — 2009-04-21
• Makes calls — 2007-05-01
• Sports "zebras" — 2007-04-16
• Calls the shots? — 2007-02-18
• Makes calls — 2005-07-05
• Foul callers — 2005-01-03
• Makes calls — 2004-10-22
• Play directors — 2004-07-10