Solution

RIMS

3 clues

Borders

Word class: Common noun
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles

Other solutions to Borders

Edges

Word class: Common noun
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles

Other solutions to Edges

Outer edges

Word class: Common noun
Nature of clue: Description
Difficulty: Very easy
Sources: Boatload Puzzles

Words are categorized by artificial intelligence: there can be mistakes.