Endless goodness in cake fragment? (5)
I believe the answer is:
crumb
'cake fragment?' is the definition.
'crumb' can be an answer for 'fragment?' (I've seen this before). I'm unsure of the 'cake' bit.
'endless goodness' is the wordplay.
'endless' means to remove the last letter.
'goodness' becomes 'crumbs' (interjection).
'crumbs' with its final letter taken away is 'CRUMB'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for crumb that I've seen before include "Fragment of cake, bread" , "Morsel of bread" , "Small bit (of comfort?)" , "Flake of bread" , "Tiny piece of bread or cake" .)