Perhaps Guy's in control at IPSO - hacking's over (8)
I believe the answer is:
hospital
'perhaps guy's' is the definition.
I can't tell whether this defines the answer.
'in control at ipso hacking's over' is the wordplay.
'in' indicates a hidden word.
'over' says the letters should be written in reverse.
'latipsoh' is hidden within 'control at ipso hackings'.
'latipsoh' backwards is 'HOSPITAL'.
Can you help me to learn more?
(Other definitions for hospital that I've seen before include "Healing institution" , "Has pilot gone there for help?" , "Barts, e.g." , "Place of healing" , "Medical institution" .)