Entertainer to visit princess briefly (8)
I believe the answer is:
comedian
'entertainer' is the definition.
(I know that comedian is a type of music interpreter)
'visit princess briefly' is the wordplay.
'visit' becomes 'come' (come can mean to make a visit).
'princess' becomes 'diana' (I have seen 'British princess' mean 'diana' so perhaps 'princess' could also mean 'diana').
'briefly' means to remove the last letter.
'diana' with its last letter taken away is 'dian'.
'come'+'dian'='COMEDIAN'
'to' acts as a link.
(Other definitions for comedian that I've seen before include "Hope, perhaps" , "scream?" , "performer" , "Demoniac (anag.)" , "Demoniac kind of funny man" .)