Whistle for some wine (4)
I believe the answer is:
pipe
'whistle' is the definition.
(I've seen this before)
'for some wine' is the wordplay.
'for' becomes 'pip' (I can't explain this - if you can you should give a lot more credence to this answer).
'some' indicates the central letters.
'wine' becomes 'red' (red is a type of wine).
The central letter of 'red' is 'e'.
'pip'+'e'='PIPE'
Can you help me to learn more?
(Other definitions for pipe that I've seen before include "Wine cask; sing shrilly" , "Tropical fruit" , "Means of conveying" , "Duct; briar" , "Possibly a churchwarden" .)