Domestic taverns change (7)
I believe the answer is:
servant
'domestic' is the definition.
(I've seen this in another clue)
'taverns change' is the wordplay.
'change' indicates anagramming the letters.
'taverns' anagrammed gives 'SERVANT'.
(Other definitions for servant that I've seen before include "Domestic worker" , "'Flunky, lackey (7)'" , "Worker in household" , "Domestic - valet" , "Man" .)