Smoker causes damages to nerve centre (6)
I believe the answer is:
stoner
'smoker causes damages to nerve centre' is the definition.
I can't judge whether this defines the answer.
'smoker causes damages to nerve centre' is the wordplay.
'STONER' is hidden in amongst the letters.
However, I'm uncertain how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for stoner that I've seen before include "Slang for habitual smoker of cannabis" , "No rest (anag) - cannabis user" , "Slang for habitual pot-smoker" .)