Meat; complaint (4)
I believe the answer is:
beef
I believe this is a double definition.
'meat' is the first definition.
(beef is a kind of meat)
'complaint' is the second definition.
(beef can mean a complaint or objection)
(Other definitions for beef that I've seen before include "it's unacceptable for vegetarian" , "Small errand" , "nickname of US State" , "Strength - grievance" , "Muscle; meat; grievance" .)