Meats cooked in table wine will (9)
I believe the answer is:
testament
'will' is the definition.
('testament' can be a synonym of 'will')
'meats cooked in table wine' is the wordplay.
'cooked' is an anagram indicator.
'in' means one lot of letters goes inside another.
'table wine' becomes 'tent' (I can't explain this - if you can you should give a lot more credence to this answer).
'meats' is an anagram of 'estam'.
'estam' placed inside 'tent' is 'TESTAMENT'.
Can you help me to learn more?
(Other definitions for testament that I've seen before include "evidence" , "document" , "(Person's) will" , "Tribute" , "Statement (anag.)" .)