Related Clues:

• Politician's core support
• It's halfway around a diamond
• Base in a lab
• Bottom; vile
• Politico's core support
• First, in 'Who's on First?'
• First, in "Who's on First?"
• When to live outside HQ
• Part of a triangle's area formula
• First layer of makeup
• Runner’s stop
• Wicked British ace emptied safe
• Bottom of a mountain
• HQ in European city left abandoned
• Starting point for Swiss city lacking top wine