Chart married secretary brought back (3)
I believe the answer is:
map
'chart' is the definition.
('map' can be a synonym of 'chart')
'married secretary brought back' is the wordplay.
'married' becomes 'm'.
'secretary' becomes 'pa' (I've seen this in other clues).
'brought back' is a reversal indicator.
'pa' back-to-front is 'ap'.
'm'+'ap'='MAP'
(Other definitions for map that I've seen before include "Diagram of part of the earth's surface" , "Geographical plan" , "Representation of earth's surface as a guide" , "Chart" , "Diagram of an area" .)