Exhibit from the robbery (4,2)
I believe the answer is:
hold up
I believe this clue is a double definition.
'exhibit' is the first definition.
(holding up is a kind of exhibiting)
'robbery' is the second definition.
(I know that robbery can be written as hold-up)
'from the' is the link.
(Other definitions for hold up that I've seen before include "Support by arms - threaten by arms" , "Stop and rob" , "robbery" , "jam" , "lift" .)