Inclination and time to go berserk (7)
I believe the answer is:
rampage
'go berserk' is the definition.
(I've seen this before)
'inclination and time' is the wordplay.
'inclination' becomes 'ramp' (an inclined surface).
'and' says to put letters next to each other.
'time' becomes 'age' (an age is a period of time).
'ramp'+'age'='RAMPAGE'
'to' acts as a link.
(Other definitions for rampage that I've seen before include "Run riot" , "destructive behaviour" , "Fury" , "Go berserk" , "Violent disorder" .)