Related Clues:

• Share a boundary
• What Utah and Idaho do
• Roughly cutting round border
• Be adjacent
• Get edgy with?
• First of the metalloids
• Neighbour's instrument returned
• Touch on a doubt
• Touch musical instrument all over
• What San Diego and Tijuana do
• Unexpectedly huge, Robin Hood’s person?
• Nothing weeded out from around border
• Fellow resident
• Be up against an objection
• Being beside oneself?