Irish county town's beginning to make wine? (6)
I believe the answer is:
claret
'wine?' is the definition.
(claret is a kind of wine)
'irish county town's beginning to' is the wordplay.
'irish county' becomes 'clare'.
'beginning to' indicates taking the first letters.
The first letter of 'towns' is 't'.
'clare'+'t'='CLARET'
'make' acts as a link.
(Other definitions for claret that I've seen before include "Deep purplish-red" , "Irish county starts the wine" , "Red Bourdeaux wine" , "Red wine from southern France" , "Irish county almost makes a red wine" .)