Bond releasing his boss from period in jail (3)
I believe the answer is:
tie
'bond' is the definition.
(both can mean a connection)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for tie that I've seen before include "Neckwear item" , "Gentleman's item of clothing" , "Failure to win" , "Draw - knot" , "Secure (with string)" .)