Agreement judge has to take food in (6)
I believe the answer is:
treaty
'agreement' is the definition.
(I know that treaty is a type of agreement)
'judge has to take food in' is the wordplay.
I cannot quite understand how this works, but
'take' could be 'eat' (eating is a kind of taking) and 'eat' is found within the answer.
'judge' could be 'try' (as in trialling a defendant) and 'try' is located in the leftover letters.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for treaty that I've seen before include "A pact between countries" , "convention?" , "Formal pact" , "Political or private agreement" , "settlement" .)