Surprising plot to accommodate high value sporting event (4,5)
I believe the answer is:
pole vault
'sporting event' is the definition.
'surprising plot to accommodate high value' is the wordplay.
'surprising' indicates anagramming the letters.
'to accommodate' indicates putting letters inside.
'high' indicates anagramming the letters (can mean drunk or on drugs and hence disordered).
'plot' is an anagram of 'polt'.
'value' with letters rearranged gives 'evaul'.
'polt' going around 'evaul' is 'POLE-VAULT'.
(Other definitions for pole vault that I've seen before include "Sergey Bubka was world champion at this event" , "High-flying Olympic event" , "Olympic field event" , "Athletic event" , "Field event -- value plot (anag)" .)