Pictures of workers giving up - arrested by agents (6)
I believe the answer is:
cinema
'pictures' is the definition.
(I've seen this in another clue)
'workers giving up arrested by agents' is the wordplay.
'workers' becomes 'men' (men can mean staff or employees).
'giving up' is a reversal indicator.
'arrested by' indicates putting letters inside (I've seen this in other clues).
'agents' becomes 'CIA' (Central Intelligence Agency).
'men' back-to-front is 'nem'.
'nem' placed inside 'cia' is 'CINEMA'.
'of' acts as a link.
(Other definitions for cinema that I've seen before include "place for pictures" , "Movie-house" , "Picture-house 96)" , "Film industry" , "The flicks" .)