Possible Clues:

• Parse note translated into Zamenhof's language
• The confused peers get the insect round for tongue
• Extraordinary ability with English was sufficient for contrived language
• Ape tenors (anag.)
• See discomfited person eat his words, set up artificially?
• Personate (anag.)
• Poet earns abuse for contrived language
• Artificial international language
• That's international, in a manner of spekaing
• With unusual awareness, muse about new tongue