Frenzied title boxing gave a buzz (8)
I believe the answer is:
deranged
'frenzied' is the definition.
'title boxing gave a buzz' is the wordplay.
'title' becomes 'deed' ('deed' can be a synonym of 'title').
'boxing' is an insertion indicator ('box' can mean contain, as in to put in a box).
'gave a buzz' becomes 'rang'.
'deed' going around 'rang' is 'DERANGED'.
(Other definitions for deranged that I've seen before include "Upset" , "bananas" , "What Ophelia was eventually" , "Lunatic" , "Gardened, being quite mad" .)