A long translation into English (5)
I believe the answer is:
anglo
'english' is the definition.
Both the answer and definition are singular nouns.
Maybe you can see an association between them that I don't see?
'a long translation' is the wordplay.
'translation' indicates an anagram.
'long' anagrammed gives 'nglo'.
'a'+'nglo'='ANGLO'
'into' acts as a link.
Can you help me to learn more?
(Other definitions for anglo that I've seen before include "Prefix denoting English" , "Prefix meaning English or British" .)