Sinful centre for troubadours (3)
I believe the answer is:
bad
'sinful' is the definition.
(thesaurus)
'centre for troubadours' is the wordplay.
'BAD' is hidden within the letters.
However, I am not sure how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for bad that I've seen before include "Spoiled or evil" , "Harmful" , "Of poor quality" , "Stinking" , "not healthy" .)