Slimming wine knocked over by neighbours in confrontation (5,5)
I believe the answer is:
local derby
'neighbours in confrontation' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'slimming wine knocked over by' is the wordplay.
'slimming' becomes 'local' (I can't explain this - if you can you should give a lot more credence to this answer).
'wine' becomes 'red' (red is a type of wine).
'knocked over' says the letters should be written backwards.
'red' back-to-front is 'der'.
'local'+'der'+'by'='LOCAL DERBY'
Can you help me to learn more?
(Other definitions for local derby that I've seen before include "Nearby game?" , "Meeting of neighbours" , "in which emotions run high" , "grudge match?" , "Match between nearby teams" .)