Related Clues:

• It's often used as a synonym for "thesaurus"
• Doctor, physician, medic, author, compiler, lexicographer …
• Reference work next to Bartlett's, maybe
• Synonym eponym
• Word menu option?
• Name synonymous with synonyms
• Item of clothing; confer
• Thesaurus deviser
• From bookmaker, decline to accept odds for grey
• Thesaurus inventor
• Bookmaker's odds in room guest reserved
• Thesaurus maker
• Conceal, oddly, art of great lexicographer
• Collector of words I acknowledge has new base
• Nearly all received first among thesauri — this one?