Related Clues:

• Purists needing education to wear trousers
• Grammar sticklers, say
• Nitpickers
• Pedants, dogmatists
• Grammar police, e.g
• Fussy people with power biting insect's head off!
• Pedants elevated knighted figure in places
• They will try correcting anyone attempting to boldly go!
• Journalist admitted to bloomers for nitpickers
• Intellectual show-offs