My story with Oxford’s head ousted by Eton’s head — crime novel? (7)
I believe the answer is:
mystery
'head crime novel?' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe there's a link between them I don't understand?
'my story with oxford's head ousted by eton's' is the wordplay.
I cannot quite see how this works, but
'my' is within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for mystery that I've seen before include "Unexplained happening" , "tale of suspense" , "Something strange and inexplicable" , "Something difficult to understand" , "Mediaeval trade" .)