Servant quiet, taking time (4)
I believe the answer is:
page
'servant' is the definition.
(a royal servant)
'quiet taking time' is the wordplay.
'quiet' becomes 'p' (music symbol for 'piano', ie soft or quiet).
'taking' says to put letters next to each other.
'time' becomes 'age' (an age is a period of time).
'p'+'age'='PAGE'
(Other definitions for page that I've seen before include "Sheet of book" , "Side" , "errand-boy" , "Piece of paper for a young attendant" , "Section of biography perhaps" .)