Related Clues:

• Directive on an octagon
• Eight-sided warning
• Train destination
• Second best bar
• “Knock it off!” (or, parsed in three parts, a hint to the theme answers)
• WH Auden's first instruction to mourners in Funeral Blues
• Knocking back vessels of Scotch?
• Order not to pay
• Take a break from doing
• “Enough with the lame puns already!” (and, when parsed as three words, a hint to the theme answers)
• "No más!"
• 'No más!'
• Cause to halt
• Peter - out of loaves from Sevastopol
• Finish second highest