Related Clues:

• Language forms
• It's where the heart is
• Lexicographer's concerns
• Works with
• Is addicted to, maybe
• Plays for a sap
• Plays for a sucker
• Tests
• Grammarians’ topics
• Accepted practices
• Draws on
• Finishes (up)
• Cultural customs
• Brings to bear
• A Swiss army knife has lots of them