Where people grow things for sharing (9)
I believe the answer is:
allotment
I believe this clue is a double definition.
'where people grow things' is the first definition.
'sharing' is the second definition.
'for' acts as a link.
(Other definitions for allotment that I've seen before include "Plot for cultivation" , "Small rented gardening plot" , "Plot of land rented for growing vegetables" , "Distribution of shares" , "Rented piece of ground" .)