You can mix cocktails here in the jug (6,4)
I believe the answer is:
behind bars
'mix cocktails here in the jug' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.
'you can' is the wordplay.
I cannot quite understand how this works, but
'can' could be 'behind' (synonyms) and 'behind' is present in the answer.
The remaining letters 'bars' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for behind bars that I've seen before include "Where to find convicts" , "Incarcerated" , "under lock and key" , "In jail" , "Where landlord might stand" .)