Walrus kept eating something crunchy (4)
I believe the answer is:
rusk
'something crunchy' is the definition.
I can't judge whether this definition defines the answer.
'walrus kept eating' is the wordplay.
'eating' says the answer is hidden in the clue.
'RUSK' is hidden in the letters of 'walrus kept'.
Can you help me to learn more?
(Other definitions for rusk that I've seen before include "cake" , "in Bristol Channel" , "Hard bread given to babies" , "It's hard for babe to get teeth into" , "Hard crisp baby food" .)