Conservator takes drunken actor round old city (7)
I believe the answer is:
curator
'conservator' is the definition.
(synonyms)
'drunken actor round old city' is the wordplay.
'drunken' indicates anagramming the letters.
'round' is an insertion indicator.
'old city' becomes 'ur' (ancient city state).
'actor' is an anagram of 'cator'.
'cator' enclosing 'ur' is 'CURATOR'.
'takes' is the link.
(Other definitions for curator that I've seen before include "Museum keeper" , "Museum custodian" , "Custodian of a collection" , "Artistic director" , "Museum officer" .)