Well known local sources of liquor in Cork (6)
I believe the answer is:
public
'well known' is the definition.
(I've seen this before)
'local sources of liquor in cork' is the wordplay.
'local' becomes 'pub' (one's local pub).
'sources of' suggests taking the first letters (the beginning of a word is its sauce).
The first letters of 'liquor in cork' is 'lic'.
'pub'+'lic'='PUBLIC'
(Other definitions for public that I've seen before include "Strangely enough, these English schools are not" , "well known" , "State-owned; in the open" , "Serving the people" , "Accessible to all" .)