Something eaten out of hand (6)
I believe the answer is:
banana
'hand' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for banana that I've seen before include "Curved yellow fruit" , "Fruit item" , "that may be unzipped" , "Fruit led by prohibition" , "Fruit grown in hands" .)