Turn out with a French drink raised (6)
I believe the answer is:
unplug
'turn out' is the definition.
(both can mean to disable an electronic device)
'with a french drink raised' is the wordplay.
'with' means one lot of letters go next to another.
'a french' becomes 'un' ('a' in French).
'drink' becomes 'gulp' (gulping is a kind of drinking).
'raised' says the letters should be written backwards.
'gulp' written backwards gives 'plug'.
'un' put next to 'plug' is 'UNPLUG'.
(Other definitions for unplug that I've seen before include "Disconnect (an electrical device)" , "Take out of socket" , "Remove a blockage from" , "Remove from a socket" , "Disconnect from power" .)