These empowered to go over our heads? (8)
I believe the answer is:
aircraft
'our heads?' is the definition.
I can't tell whether this defines the answer.
'these empowered to go' is the wordplay.
I cannot quite understand how this works, but
'go' could be 'raft' (rafting is a kind of going) and 'raft' is located in the answer.
This explanation may well be incorrect...
'over' acts as a link.
Can you help me to learn more?
(Other definitions for aircraft that I've seen before include "means of transport" , "Vehicle that can fly" , "Helicopters, gliders, etc." , "Eg, plane, helicopter, etc" , "Planes" .)