Related Clues:

• With 12 across, a medium
• Harden a medium?
• Anger, a medium sort
• Is that a way to make a medium hard for the artist?
• The mixture of the mule is no mixture
• That makes one cross to a medium extent
• Having been beaten up, the mule is on it
• That's enough to harden a medium for the artist
• It might anger a painter to use it
• Anger, a medium for artistry
• Harden a medium for the artist
• The trouble with the ruddy dog if just crossness in the end
• Anger a painter to a medium extent
• The mule is on to make it in suspense
• Material for some balloons