Old English writer? Not entirely (3)
I believe the answer is:
poe
'old english' is the definition.
Both the answer and definition are singular nouns.
Maybe there's a link between them I don't understand?
'writer? not entirely' is the wordplay.
'writer?' becomes 'poet' (poet is a kind of writer).
'not entirely' means to remove the last letter (most but not all of the word).
'poet' with its final letter removed is 'POE'.
Can you help me to learn more?
(Other definitions for poe that I've seen before include "He wrote short stories" , "Edgar Allan ---, poet more famous for his gothic short stories" , "Edgar Allen, great American writer of eerie stories" , "Edgar Allan --, US poet and author" , "The Raven poet" .)