Layer of canape's chewy - avoid! (6)

I believe the answer is:
eschew
'layer' is the definition.
Although both the answer and definition are verbs in their base form, I can't understand how they can define each other.
'of canape's chewy avoid' is the wordplay.
'of' indicates a hidden word.
'ESCHEW' is hidden within 'canapes chewy avoid'.
Can you help me to learn more?
(Other definitions for eschew that I've seen before include "Avoid,shun" , "Shun, spurn" , "give up" , "Deliberately stay away from" , "Ignore" .)
