Crossword Genius

Building in garden where a serving of wine is free? (10)

Ross

I believe the answer is:

glasshouse

'building in garden' is the definition.
(type of greenhouse)

I don't understand the remainder of the clue.

(Other definitions for glasshouse that I've seen before include "Building for plants; prison" , "where no one should be stoned?" , "stone's throw away?" , "where lapidation is not recommended?" , "Conservatory - military detention centre" .)

I've seen this clue in The Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.