Bring up what AC Milan fans may do? (8)
I believe the answer is:
disinter
'bring up' is the definition.
(to bring up from the ground)
I cannot understand how the remainder of the clue works.
(Other definitions for disinter that I've seen before include "Exhume a body" , "Dig up, say a body" , "Dig up a dead body" , "Dig up something buried" , "Unearth" .)