
1) All Night Long singer 2) Ashburn of baseball 3) British slang for the penis 4) English boy name 5) English boy name 6) Friend of the Fonz 7) Happy Days role for Ron 8) Havens at woodstock 9) Havens for folkies 10) Havens of Greased Lightning 11) Havens who sang at Woodstock 12) He co-wrote We Are the World 
Found on 
https://www.crosswordclues.com/clue/richie

Richie is British slang for the penis.
Found on 
http://www.probertencyclopaedia.com/browse/ZR.HTM

Richie is an English name for boys. The meaning is `old, counsel, wise` The name Richie is most commonly given to Scottish boys. (4 times more often than to American boys.) If it's too long you might use: Riku, Rik, Dick, Rich, Rick Use for the other sex: Ricarda, Riccarda, Richardine, Richendra, Richelle The name sounds like: Ritchie, Rickie Simil...
Found on 
https://www.pregnology.com/names/boys/Richie
  No exact match found.