He writes beautifully (4)
I believe the answer is:
poet
'he writes beautifully' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
This is all the clue.
Can you help me to learn more?
(Other definitions for poet that I've seen before include "Heaney or Yeats, say" , "Bridges possibly" , "Pound, say" , "author" , "Ginsberg perhaps" .)