Some wine for a Republican in bistro (6)
I believe the answer is:
carafe
'some wine' is the definition.
(I've seen this before)
'a republican in bistro' is the wordplay.
'republican' becomes 'R' (abbreviation in US politics).
'in' indicates putting letters inside.
'bistro' becomes 'cafe' (I've seen this in another clue).
'a'+'r'='ar'
'ar' inserted within 'cafe' is 'CARAFE'.
'for' is the link.
(Other definitions for carafe that I've seen before include "Open-topped glass flask" , "Serving vessel for water or wine" , "Source of wine" , "Glass bottle in which wine is served at table" , "Bottle with a stopper, for wine or water" .)