Historical clue formulations

• Like many a chute in Chutes and Ladders — 2022-07-23
• Curvy, in a way — 2012-09-13
• Like some curves — 2006-11-17
• Like some hooks — 2005-11-13
• Sigmoid — 2004-06-27
• Like a pothook — 2002-06-28
• Like a tête-à-tête sofa — 2000-08-18