Queen's back, refined with rap (9)
I believe the answer is:
reprimand
'rap' is the definition.
(thesaurus)
'queen's back refined with' is the wordplay.
'queen' becomes 'er' (abbreviation for Elizabeth Regina).
'back' shows that the letters should be reversed in order.
'refined' becomes 'prim' ('prim' can be similar in meaning to 'refined').
'with' becomes 'and' (I've seen this before**).
'er' back-to-front is 're'.
're'+'prim'+'and'='REPRIMAND'
(Other definitions for reprimand that I've seen before include "Severe reproof" , "Admonish" , "Tick off - carpet" , "Severe telling-off" , "Formal censure" .)