Tavern's purple fruit not popular (7)
I believe the answer is:
auberge
'tavern's' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for auberge that I've seen before include "Continental inn" , "Hotel" , "(French) inn or tavern" , "Local" , "restaurant" .)