A centaur? (8)
I believe the answer is:
horseman
'a centaur?' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'a centaur?' is the wordplay.
I cannot quite understand how this works, but
'a' could be 'an' and 'an' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for horseman that I've seen before include "mounted rider" , "Jockey" , "(Skilled) rider" , "Equestrian" , "Male rider" .)