Drink surrounds most of historic feature of bar? (4,5)
I believe the answer is:
pool table
'feature of bar?' is the definition.
(a bar or pub might have a pool table)
'drink surrounds most of historic' is the wordplay.
'drink' becomes 'potable' (synonyms).
'surrounds' means one lot of letters goes inside another.
'most of' means to remove the last letter.
'historic' becomes 'old'.
'old' with its final letter taken off is 'ol'.
'potable' placed around 'ol' is 'POOL TABLE'.
(Other definitions for pool table that I've seen before include "pub facility, perhaps" , "Boot lapel (anag.)" , "Baize-covered feature of many pubs" .)