Greek imitates wine suppliers
I believe the answer is:
grapes
'wine suppliers' is the definition.
Although both the answer and definition are plural nouns, I don't see how one could define the other.
'greek imitates' is the wordplay.
'greek' becomes 'gr' (abbreviation for Greek).
'imitates' becomes 'apes' ('ape' can be a synonym of 'imitate').
'gr'+'apes'='GRAPES'
Can you help me to learn more?
(Other definitions for grapes that I've seen before include "John Steinbeck wrote 'The . . . . . . of Wrath'" , "See 10 Across" , "'Green, black or purple clusters (6)'" , "Juicy fruits" , "Fruit that grows in clusters" .)