Dress circle for the clergyman (6)
I believe the answer is:
cleric
'the clergyman' is the definition.
(cleric is a kind of clergyman)
'dress circle' is the wordplay.
'dress' is an anagram indicator.
'circle' anagrammed gives 'CLERIC'.
'for' acts as a link.
(Other definitions for cleric that I've seen before include "Churchman" , "One who takes orders" , "Clergyman" , "Type of cloth, perhaps" , "Church minister" .)