Type of robbery (5-3-4)
I believe the answer is:
smash-and-grab
'type of robbery' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for smash-and-grab that I've seen before include "(Robbery) involving broken window and theft" , "Describing a quick robbery from a shop" , "Break-in (through a shop window)" , "Style of robbery through a broken display window" , "Descriptive of a robbery" .)