Do in housekeeper for money (7)
I believe the answer is:
perform
'do' is the definition.
(I know that do can be written as perform)
'in housekeeper for money' is the wordplay.
'in' indicates a hidden word.
'PERFORM' is hidden in the letters of 'housekeeper for money'.
(Other definitions for perform that I've seen before include "act on stage" , "Act or execute" , "Carry out (a task)" , "Carry out; act" , "Do a good job" .)