Rich sort prepared to host English singer (9)
I believe the answer is:
chorister
'singer' is the definition.
(chorister is a kind of singer)
'rich sort prepared to host english' is the wordplay.
'prepared' indicates an anagram.
'to host' indicates putting letters inside.
'english' becomes 'e' (abbreviation).
'rich'+'sort'='richsort'
'richsort' is an anagram of 'choristr'.
'choristr' placed around 'e' is 'CHORISTER'.
(Other definitions for chorister that I've seen before include "Church, cathedral singer" , "Boy singing" , "Boy singer" , "Boy in church" , "Choirboy or girl" .)