Related Clues:

• It can mean one is too young or too old
• I am legit (anag)
• Regulation based on year of birth that sets down when one can no longer do something
• Generation against ceiling for the over sixty-fives
• I am the bees' knees joining a set that may bar older folk
• Part of a bar code?
• Maturity restriction
• Take note: legitimate manoeuvring is what bars under-18s from voting
• Personal restriction legit -- I'm a crackpot!
• Minor issue?
• 17-24, for Miss America
• Restriction on Army enlistees
• A raised stage at one American college restricts a younger generation, for instance
• Entry level?
• Bar barrier