Music leader could roast me terribly! (7)
I believe the answer is:
maestro
'music leader' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'roast me terribly' is the wordplay.
'terribly' indicates an anagram.
'roast'+'me'='roastme'
'roastme' anagrammed gives 'MAESTRO'.
'could' is the link.
Can you help me to learn more?
(Other definitions for maestro that I've seen before include "Noted conductor" , "Gifted performer" , "Artist of consummate skill: conductor" , "Expert in music etc" , "A master of any art, like music" .)