Hand over power with unrestrained glee, just in time (8)
I believe the answer is:
delegate
'hand over' is the definition.
(thesaurus)
'with unrestrained glee just in time' is the wordplay.
'with' means one lot of letters goes inside another.
'unrestrained' indicates anagramming the letters.
'just in time' becomes 'date' (I can't explain this - if you can you should believe this answer much more).
'glee' with letters rearranged gives 'eleg'.
'eleg' inserted within 'date' is 'DELEGATE'.
'power' acts as a link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for delegate that I've seen before include "Consign" , "Appoint or send as a representative" , "Groups representative" , "One representing others" , "Representative sent to meeting" .)