No longer bound to deliver (3,4)
I believe the answer is:
set free
'deliver' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for set free that I've seen before include "Uncaged birds have been" , "Turn loose" , "Released" , "no longer confined" , "Clear" .)