One fruit coming up amidst vegetable garden feature (7)
I believe the answer is:
petunia
'garden feature' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'one fruit coming up amidst vegetable' is the wordplay.
'one' becomes 'I' (Roman numeral).
'fruit' becomes 'nut' (nut is a kind of fruit).
'coming up' shows that the letters should be reversed in order.
'amidst' means one lot of letters goes inside another.
'vegetable' becomes 'pea' (pea is a type of vegetable).
'i'+'nut'='inut'
'inut' written backwards gives 'tuni'.
'tuni' put inside 'pea' is 'PETUNIA'.
Can you help me to learn more?
(Other definitions for petunia that I've seen before include "Garden plant with large funnel-shaped flower" , "Flowering plant" , "Colourful" , "Plant related to tobacco" , "Common garden 13 across" .)