Historical clue formulations

• Trigger — 2026-08-30
• Encourage, with "on" — 2025-10-08
• Part of a cowgirl's boot — 2025-07-22
• Cowboy boot attachment — 2025-06-17
• Cowboy boot attachment — 2025-03-18
• Kick-start — 2025-02-15
• Egg on — 2022-07-27
• On the ___ of the moment — 2021-09-06
• Goad — 2021-05-29
• Cowboy boot feature — 2021-04-28
• Appendage on a cowboy's boot — 2020-08-31
• ___ of the moment — 2020-05-19
• San Antonio pro — 2020-01-26
• Urge on — 2019-08-07
• Railway offshoot — 2017-10-01
• Cowboy boot attachment — 2017-08-14
• Cowboy boot accessory — 2017-04-05
• What you might use when you say "Giddyup!" — 2017-01-31
• What might be used with a "Giddy-up!" — 2016-07-13
• Spike on a cowboy boot — 2016-06-13
• Poker in a western — 2015-07-12
• 2014 N.B.A. champ — 2014-10-09
• Cowboy's prod — 2014-01-08
• Sidetrack? — 2013-11-14
• Boot accessory — 2013-07-17
• Provoke — 2013-04-14
• Thing on a cowboy's boot — 2012-08-20
• Urge on — 2011-06-15
• Cowboy boot feature — 2010-10-19
• Thing on a cowboy's boot — 2010-06-14
• Cowboy boot feature — 2009-12-07
• It may be down at the heel — 2009-07-22
• Track branch — 2009-06-11
• Poker variety? — 2009-05-29
• Cowboy boot attachment — 2007-12-03
• Stimulate — 2007-04-29
• Urge (on) — 2007-02-07
• Cowboy boot part — 2006-09-25
• Side track — 2006-08-04
• San Antonio player — 2006-03-28
• Side line — 2005-12-22
• Cowboy boot feature — 2005-09-12
• Pony provoker — 2004-12-26
• Incentivize — 2004-07-18
• Cowboy boot attachment — 2003-10-07
• Urge (on) — 2001-11-14
• Prompt — 2001-11-03
• Cowboy boot attachment — 2001-06-04
• Railway siding — 2001-02-27
• It's used with a "giddyup!" — 2000-07-24