A plot that should bear fruit (7)
I believe the answer is:
orchard
This clue could be a double definition.
'a plot that should' is the first definition.
'orchard' can be an answer for 'a plot' (orchard is a kind of plot). I'm not sure about the rest of the definition.
'bear fruit' is the second definition.
The definition and answer can be both man-made objects as well as being singular nouns.
I also know that 'fruit' relates to this answer.
Can you help me to learn more?
(Other definitions for orchard that I've seen before include "Fruit-tree plot" , "Clump of fruit trees" , "Area with fruit trees" , "where fruit trees grow" , "In which one may pick apples" .)