Historical clue formulations

• One of two in "business suits" — 2024-06-12
• Character in "Friends" — 2019-11-07
• Fourth letter of "business" — 2018-04-09
• Part of "business," phonetically — 2017-06-05
• Sound part of business? — 2016-07-12
• Business feature? — 2015-10-18
• One in business? — 2015-09-13
• Carriage part? — 2011-01-07