Staff continue to receive deliveries (5)
I believe the answer is:
baton
'staff' is the definition.
(I've seen this before)
'continue to receive deliveries' is the wordplay.
'continue' becomes 'on' (I've seen this in other clues).
'to' says to put letters next to each other (I've seen this in other clues).
'receive deliveries' becomes 'bat' (I can't justify this - if you can you should give a lot more credence to this answer).
'on' put after 'bat' is 'BATON'.
Can you help me to learn more?
(Other definitions for baton that I've seen before include "Controller of players" , "A conductor wields it - or a policemen" , "Police (or conductor's) stick" , "It's used by a conductor and a policeman" , "Prohibition" .)