Related Clues:

• Tenacious and stern, is training pet to go outside
• Determined half of champers is Spanish wine
• Going on and on about, resist exploding 'Shut up!'
• Old Middle Eastern country's lacking a shelter for carrying on
• Not dead yet
• Tenacious relative runs up surrounded by exercise books
• Tireless individual not getting on is behind nine others, falling short
• Keeping at it
• Unwilling to give up
• Nagging
• Remarkable prettiness is long lasting
• & 17 Down 'Tapestry' remaining one of the greatest albums ever
• Prettiness that's rendered enduring
• Continual pettiness tormented boxing king
• Prolonged; nagging