A little room, a bit dark, suitable for wine (6)
I believe the answer is:
cellar
'room a bit dark suitable for wine' is the definition.
'cellar' can be an answer for 'room' (I've seen this before). I am not sure about the 'a bit dark suitable for wine' bit.
'a little' is the wordplay.
I cannot really see how this works, but
'a' is within the answer.
'little' could be 'l' (abbreviation for little) and 'l' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for cellar that I've seen before include "Underground storeroom" , "Where provisions may be stored" , "Storage area for the wine" , "Storage space, for wine perhaps" , "Bottom room where wine may be stored" .)