Historical clue formulations

• Bars of soap — 2025-03-16
• Candle holders, sometimes — 2022-05-20
• Encrusts — 2022-03-25
• See 13-Down — 2016-02-23
• Soap units — 2011-06-26
• They're sometimes upside-down — 2010-06-24
• Candle holders — 2008-02-29
• - — 2008-02-03
• Babas and babkas — 2005-11-05
• With 40-Across, a breakfast order — 2003-09-11
• Candle holders? — 2002-11-28
• Candle holders? — 2001-12-29
• Doesn't maintain even consistency — 2000-10-01
• Bars of soap — 1999-05-03
• Solidifies — 1994-11-05