Jailed, but ready for release? (2,3,3)
I believe the answer is:
in the can
This clue is a double definition.
'jailed' is the first definition.
(I've seen this before)
'ready for release?' is the second definition.
(I've seen this before)
'but' acts as a link.
(Other definitions for in the can that I've seen before include "Jailed" , "Imprisoned in America" , "(Of a film or piece of music) satisfactorily recorded, etc" , "ready to be released" , "(Of film) satisfactorily shot and edited" .)