Man reorganising the rodeo (8)
I believe the answer is:
theodore
'man' is the definition.
(I've seen this before)
'reorganising the rodeo' is the wordplay.
'reorganising' is an anagram indicator.
'the'+'rodeo'='therodeo'
'therodeo' anagrammed gives 'THEODORE'.
(Other definitions for theodore that I've seen before include "... Roosevelt" , "Man" , "ex-president was named thus" .)