Couple of murders in workplace (6)
I believe the answer is:
office
'workplace' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for office that I've seen before include "Business premises" , "Post - bureau" , "Professional or clerical duties are performed here" , "Where many of us work" , "Workroom" .)