Cooked meal writer's fed to son and daughter (7)
I believe the answer is:
steamed
'cooked' is the definition.
(similar in meaning)
'meal writer's fed to son and daughter' is the wordplay.
I cannot really understand how this works, but
'meal' could be 'tea' (tea is a type of meal) and 'tea' is located in the answer.
'son' could be 's' (genealogical abbreviation for son) and 's' is present in the answer.
'daughter' could be 'd' (genealogical abbreviation) and 'd' is located in the answer.
'writer' could be 'me' (the person who wrote the clues) and 'me' is found within the answer.
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 steamed that I've seen before include "Cooked over hot water" , "Proceeded with course" , "got really hot" , "cooked a certain way" , "Cooked in vapour" .)