Went over if I ever stupidly took the plunge (8)
I believe the answer is:
reviewed
'went over' is the definition.
(reviewing is a kind of going over)
'i ever stupidly took the plunge' is the wordplay.
'stupidly' indicates anagramming the letters (a stupid ordering of the letters).
'took the plunge' becomes 'wed' (I am not sure about this - if you are sure you should believe this answer much more).
'i'+'ever'='iever'
'iever' anagrammed gives 'revie'.
'revie'+'wed'='REVIEWED'
'if' is the link.
Can you help me to learn more?
(Other definitions for reviewed that I've seen before include "evaluated?" , "Had second thoughts" , "critically assessed" , "having given in one's notice" , "Critically discussed" .)