Historical clue formulations

• Apple product discontinued in 2017 — 2017-08-20
• Product that once bore a click wheel — 2016-01-26
• Very light player — 2015-10-10
• Apple picker's pick? — 2014-12-28
• Apple product — 2013-11-10
• Player in a pocket — 2013-04-27
• Little music maker — 2008-09-13
• Player in a shirt pocket — 2007-11-17