Mark raged wildly (5)
I believe the answer is:
grade
'mark' is the definition.
(synonyms)
'raged wildly' is the wordplay.
'wildly' is an anagram indicator.
'raged' is an anagram of 'GRADE'.
(Other definitions for grade that I've seen before include "School mark" , "one of the entertainment moguls" , "Rank or status" , "Degree" , "Particular level of rank, quality, etc" .)