edit: thanks to Ulaca for pointing out “en” not only sounds like the letter N, it is the name of it according to the usual dictionaries. I must say I find that puzzling. Do all letters of the alphabet have names? How do you spell the name of the letter “a” for example? And does “z” have different names in UK and US? Apparently so, according to Wikipedia: https://en.wikipedia.org/wiki/English_alphabet. Learn something new every day!
Times Cryptic No 27168