Complaint springing up over weight used in meat dish (4,10)
I believe the answer is:
beef wellington
'meat dish' is the definition.
(I've seen this before)
'complaint springing up over weight' is the wordplay.
'complaint' becomes 'beef' (beef can mean a complaint or objection).
'springing up' becomes 'welling' (I can't justify this - if you can you should believe this answer much more).
'over' is a charade indicator (letters next to each other) (in a down clue, some letters go over others).
'weight' becomes 'ton' (unit of weight).
'beef'+'welling'+'ton'='BEEF WELLINGTON'
'used in' acts as a link.
Can you help me to learn more?
(Other definitions for beef wellington that I've seen before include "Menu item" , "meal" , "dish - with 10a" , "meat dish" , "Meat-in-pastry dish" .)