Used tobacco, but was cured (6)
I believe the answer is:
smoked
'cured' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for smoked that I've seen before include "Dried and cured by hanging in wood vapour" , "(Of salmon) cured" , "Fumigated; cured" , "Had a cigarette" , "Cured over fire" .)