Drink hers around railway (6)
I believe the answer is:
sherry
'drink' is the definition.
(I know that Sherry is a drink)
'hers around railway' is the wordplay.
'around' is an anagram indicator.
'railway' becomes 'ry' (abbreviation for railway).
'hers' with letters rearranged gives 'sher'.
'sher'+'ry'='SHERRY'
(Other definitions for sherry that I've seen before include "Christmas drink?" , "Preprandial drink" , "Spanish fortified wine" , "Wine from Spain's Jerez region, drunk as an aperitif" , "Pre-dinner aperitif as from Jerez" .)