Historical clue formulations

• Throw from a mound — 2026-09-21
• Sales spiel — 2026-09-03
• It's perfect for some musicians — 2026-05-05
• Concern for a singer or a salesman — 2026-01-13
• Marketing spiel — 2023-01-23
• Word before or after perfect — 2022-06-26
• Topic for a voice coach — 2021-05-28
• Singer's concern — 2016-04-22
• Bit of marketing — 2015-12-20
• Spiel — 2015-07-03
• Hull sealer — 2013-08-31
• See 59-Across — 2011-03-16
• Throw — 2006-06-06
• Spiel — 2005-05-25
• Sales spiel — 1994-10-18