A timely service! (3,3)
I believe the answer is:
tea set
'service' is the definition.
(service can mean items for serving tea)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for tea set that I've seen before include "Collections of cups, saucers etc for serving light meal" , "Crockery service" , "Cups, saucers, plates" , "Collection of crockery from estate" , "facility for refreshment" .)