Doctor instead to produce cures (9)
I believe the answer is:
antidotes
'cures' is the definition.
(antidote is a kind of cure)
'doctor instead to' is the wordplay.
'doctor' is an anagram indicator.
'instead'+'to'='insteadto'
'insteadto' anagrammed gives 'ANTIDOTES'.
'produce' acts as a link.
(Other definitions for antidotes that I've seen before include "Remedies" , "Counteractions to poisons" , "Cures for poisons" .)