Bars in which people usually serve Coke (5)
I believe the answer is:
lines
'bars' is the definition.
(bar can mean a line)
'in which people usually serve coke' is the wordplay.
I cannot really understand how this works, but
'in' is within the answer.
The remaining letters 'les' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for lines that I've seen before include "Actor's text" , "Skin wrinkles" , "Long thin strokes" , "Items" , "imposition" .)