Polite, like some servants? (5)
I believe the answer is:
civil
I believe this clue is a double definition.
'polite' is the first definition.
(synonyms)
'like some servants?' is the second definition.
(as in civil servants)
(Other definitions for civil that I've seen before include "Courteous, polite" , "Polite and non-military" , "Mannerly" , "Polite to the state" , "(Of law) non-criminal" .)