Crush food consumed around dinner's end (10)
I believe the answer is:
dishearten
'crush' is the definition.
'food consumed around dinner's end' is the wordplay.
'food' becomes 'dish' (dish is a kind of food).
'consumed' becomes 'eaten' (similar in meaning).
'around' indicates putting letters inside.
'dinner's end' becomes 'r' (end of the word 'dinner').
'eaten' placed around 'r' is 'earten'.
'dish'+'earten'='DISHEARTEN'
(Other definitions for dishearten that I've seen before include "Take hope from" , "Bring down" , "Cause (someone) to lose confidence" , "Take away bottle" , "cast down" .)