Possible Clues:

• One with a point; debate's beginning to become aggravated
• Requirement came first, making one annoyed
• Annoyed as essential to assimilate Latin
• Annoyed as essential to assimilate Latin at the outset
• Having been riled, got one's point across
• Irritated, being required to cross lake
• Gave the business to
• Wound up like a compass?
• Picked on
• Heckled or teased