Related Clues:

• Chin dimple
• Narrow opening
• Diplomatic woe
• Squabble
• Diplomatic to-do
• Altercation result
• It's the geologist's fault
• Short rhythmic phrase, in music
• Disagreement
• Indentation in Michael Jackson's face
• Difference of opinion
• Chasm
• Falling out
• Schism
• Separation