Victoria for example collapses (5)
I believe the answer is:
falls
I believe this is a double definition.
'victoria for example' is the first definition.
(victoria is a kind of falls)
'collapses' is the second definition.
(I've seen this in another clue)
(Other definitions for falls that I've seen before include "Plummets" , "Victoria or Niagara, for example" , "Cascade" , "Drops" , "American seasons" .)