Confiscating licence, perhaps, turning it over to this authority (8)
I believe the answer is:
revoking
'confiscating licence perhaps turning it' is the definition.
I can't judge whether this defines the answer.
'over to this authority' is the wordplay.
I cannot quite see how this works, but
an anagram of 'over' is 'revo' which is located in the answer.
The remaining letters 'king' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Another definition for revoking that I've seen is " withdrawing".)