I renovated mansion - it keeps me from going out (8)
I believe the answer is:
insomnia
'it keeps me from going out' is the definition.
The definition suggests a singular noun which matches the answer.
'i renovated mansion' is the wordplay.
'renovated' indicates anagramming the letters.
'mansion' anagrammed gives 'nsomnia'.
'i'+'nsomnia'='INSOMNIA'
Can you help me to learn more?
(Other definitions for insomnia that I've seen before include "Not getting off" , "problem at night" , "State of chronic sleeplessness" , "Habitual inability to sleep (8)" , "Sleep disorder" .)