Pick up is part of the service (7)
I believe the answer is:
collect
I believe this clue is a double definition.
'pick up' is the first definition.
(I know that pick up can be written as collect)
'is part of the service' is the second definition.
(I've seen this before)
(Other definitions for collect that I've seen before include "mass" , "Come together" , "Assemble or bring together" , "Raise" , "Gather together, for a short prayer perhaps" .)