Possibly read about Victor having gone mad (5)

I believe the answer is:
raved
'gone mad' is the definition.
Although both the answer and definition are past participle verbs, I don't understand how they can define each other.
'possibly read about victor' is the wordplay.
'possibly' is an anagram indicator.
'about' indicates putting letters inside.
'victor' becomes 'V' (phonetic alphabet: alpha, bravo, charlie etc.).
'read' is an anagram of 'raed'.
'raed' enclosing 'v' is 'RAVED'.
'having' acts as a link.
Can you help me to learn more?
(Other definitions for raved that I've seen before include "Attended a music event" , "gave a good review" , "Went into raptures" , "Was flipping" , "Talked incoherently" .)
