She is there concealing robbery (5)
I believe the answer is:
heist
'robbery' is the definition.
(I know that heist is a type of robbery)
'she is there concealing' is the wordplay.
'concealing' indicates a hidden word.
'HEIST' is hidden within 'she is there'.
(Other definitions for heist that I've seen before include "Robbery (mainly US)" , "criminal activity" , "crime?" , "Bank robbery" , "Mugging" .)