VIP's report? (3,5)
I believe the answer is:
big noise
I believe this clue is a double definition.
'vip's' is the first definition.
(I've seen this before)
'report?' is the second definition.
(I've seen this before)
(Other definitions for big noise that I've seen before include "VIP" , "Important person (colloq.)" , "Chairman" , "strong report, perhaps" , "An important person, sounds loud" .)