It’s eaten by many, if fun is also wanted (6)
I believe the answer is:
muffin
If this is the answer I cannot explain how the clue works.
Can you help me to learn more?
(Other definitions for muffin that I've seen before include "Yeast cake eaten hot" , "Thick roll, usually toasted" , "Toasted, spongy bread roll" , "Round raised cake, often split and toasted" , "Small cake" .)