The flute at the end of You've Got To Hide Your Love Away.
The keyboards in the middle of LA Woman.
The xylophone? glockenspiel? in Cecilia.
Ginger Baker on Toad by Cream - 3 years before Moby Dick.
As someone has mentioned, the fiddle at the end of Baba O'Riley.
As for Clarence, too many to chose from, and Jungleland is…