Corn grows here - not much to eat at first (6,3)
I believe the answer is:
little toe
'corn grows here' is the definition.
(corns might grow on a person's toes)
'not much to eat at first' is the wordplay.
'not much' becomes 'little' ('little' is the opposite to 'much').
'at first' says to take the initial letters.
The initial letter of 'eat' is 'e'.
'little'+'to'+'e'='LITTLE TOE'
(Other definitions for little toe that I've seen before include "Small digit" , "Lower extremity" , "smallest digit" , "Tiniest foot digit" .)