Possible Clues:

• ''Cheers'' proprietor
• Sam who owned Cheers
• Sweet Molly is by herself at last
• Court great Karl
• Grand to be by oneself with the late Molly
• Was she a single parent family with a barrow?
• Bar owner who served Clavin and Peterson
• Connery's 'Untouchables' role
• Dublin's loveless 21 married a single dying man, according to 4 across
• Family name in a classic Irish ballad