Ground corn is offloaded from this (5)
I believe the answer is:
earth
'ground' is the definition.
(I know that ground can be written as earth)
'corn is offloaded from this' is the wordplay.
I cannot really understand how this works, but
'corn' could be 'ear' (an ear is a piece of corn) and 'ear' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for earth that I've seen before include "See 12" , "costs so much?" , "It is necessary to clear" , "underground shelter" , "our home" .)