Trump cut short meeting with prostitute, we hear, which is novel (7)
I believe the answer is:
ivanhoe
'is novel' is the definition.
(novel by Sir Walter Scott)
'trump cut short meeting with prostitute we hear' is the wordplay.
'trump' becomes 'Ivana' (Ivana Trump, ex-wife of Donald Trump).
'cut short' means to remove the last letter.
'meeting with' says to put letters next to each other.
'prostitute' becomes 'ho' (US slang).
'we hear' shows a homophone (sound like).
'ho' is a homophone of 'hoe'.
'ivana' with its last letter taken away is 'ivan'.
'ivan'+'hoe'='IVANHOE'
'which' is the link.
(Other definitions for ivanhoe that I've seen before include "Literary hero" , "Walter Scott's eponymous hero" , "I have no collection for Walter Scott's famous novel" , "Scott's Crusading hero" , "Sir Walter Scott novel" .)