Possible Clues:

• 1941 Disney film
• 1941 film about a young circus elephant born with large ears
• Departs with boss on elephant
• Disney film: Silent Love
• Slow-witted type ultimately exasperated boss
• Disney's fourth animated feature film
• 1941 Disney animation whose protagonist’s only friend is a mouse called Timothy
• Elephant befriended by Timothy Q. Mouse
• Stupid person
• Toon that flies with his ears