An example of this could be cherry wine (3)
I believe the answer is:
red
'wine' is the definition.
(red is a type of wine)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for red that I've seen before include "Colour of a cardinal's hat" , "Merchant flag" , "eg Cardinal" , "Looking embarrassed" , "Colour of garnets" .)