Building trust, cure drunk (9)
I believe the answer is:
structure
'building' is the definition.
(I've seen this before)
'trust cure drunk' is the wordplay.
'drunk' is an anagram indicator.
'trust'+'cure'='trustcure'
'trustcure' anagrammed gives 'STRUCTURE'.
(Other definitions for structure that I've seen before include "make-up" , "Building; framework" , "Edifice" , "Building or organised arrangement" .)