Bizarre request -- go in confusion (9)
I believe the answer is:
grotesque
'bizarre' is the definition.
(thesaurus)
'request go in confusion' is the wordplay.
'in confusion' indicates anagramming the letters.
'request'+'go'='requestgo'
'requestgo' with letters rearranged gives 'GROTESQUE'.
(Other definitions for grotesque that I've seen before include "Fantastically hideous" , "Bizarre; monstrous" , "Freakish" , "Outlandish" , "Weird" .)