Feeling initially coming up in old cook for meaty dish (4,10)
I believe the answer is:
beef wellington
'meaty dish' is the definition.
'beef Wellington' can be an answer for 'dish' (beef Wellington is a kind of dish). I'm unsure of the 'meaty' bit.
'feeling initially coming up in old cook' is the wordplay.
'initially' says to take the initial letters.
'coming up' becomes 'welling' (welling is a kind of coming up).
'in' is an insertion indicator.
'old cook' becomes 'beeton' (I've seen this before).
The initial letter of 'feeling' is 'f'.
'f'+'welling'='fwelling'
'fwelling' going within 'beeton' is 'BEEF WELLINGTON'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for beef wellington that I've seen before include "meal" , "Meat-in-pastry dish" , "Menu item" , "meat dish" , "dish - with 10a" .)