Able to look forward, reinspect changes (9)
I believe the answer is:
prescient
'able to look forward' is the definition.
(prescience is knowledge of future events)
'reinspect changes' is the wordplay.
'changes' indicates an anagram.
'reinspect' anagrammed gives 'PRESCIENT'.
(Other definitions for prescient that I've seen before include "Reinspect, having foresight" , "Certainly dealing in futures" , "Showing knowledge of events before they take place" , "Able to predict events" , "Having second sight" .)