Criminal's demand to pass drink (5,2)
I believe the answer is:
hands up
'criminal's demand' is the definition.
(demand from a robber)
'pass drink' is the wordplay.
'pass' becomes 'hand' (synonyms).
'drink' becomes 'sup' (to sup is to drink).
'hand'+'sup'='HANDS UP'
'to' acts as a link.
(Other definitions for hands up that I've seen before include "order to surrender" , "Armed robber's order" , "Don't resist, I've a gun!" , "Demand from an armed robber?" , "call for surrender" .)