Railway staff in station, closer? (8)
I believe the answer is:
screwtop
'railway' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'staff in station closer?' is the wordplay.
'staff' becomes 'crew' (crew of workers).
'in' means one lot of letters goes inside another.
'station closer?' becomes 'stop' (I've seen this in another clue. I am not sure about the 'closer?' bit.).
'crew' put inside 'stop' is 'SCREWTOP'.
Can you help me to learn more?
(Other definitions for screwtop that I've seen before include "cap or lid" , "one goes on the bottle" , "that closes jar" , "kind of bottle" , "Describing a type of bottle" .)