Free to hand over to (7)
I believe the answer is:
deliver
'free' is the definition.
(delivering is a kind of freeing)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for deliver that I've seen before include "Hand over (to someone)" , "Hand over - release" , "what the errand boy does" , "Transfer and hand over" , "launch" .)