Related Clues:

• Over 18
• Having acquired door key, maybe I'll turn to check what's following me
• Postadolescent
• 18, often
• Old enough to buy beer, say
• Eligible to vote, say
• 18, say
• Come __ (mature)
• Old enough to vote, say
• Love cigarette -- ultimately smoke eighteen?
• Twenty-one, say
• 18 or 21, by law
• No longer too young
• 18 or 21, say
• No longer too young to work hard in Rome (odd parts excepted)