Cake's smell I'm not too sure about (6)
I believe the answer is:
muffin
'cake's' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for muffin that I've seen before include "Thick roll, usually toasted" , "Yeast cake eaten hot" , "Tea cake" , "baked treat" , "Cake - old TV mule" .)