Rush at plate and take the edge off hunger (5)
I believe the answer is:
lunge
'rush' is the definition.
(thesaurus)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for lunge that I've seen before include "Sudden thrust forward" , "Charge" , "dive" , "foil attack?" , "Sudden forward motion" .)