Promote nurse (6)
I believe the answer is:
foster
This clue is a double definition.
'promote' is the first definition.
(I know that foster is a type of promote)
'nurse' is the second definition.
(I've seen this before)
(Other definitions for foster that I've seen before include "Promote, nurture" , "Promote, encourage" , "Nurse -- nursery rhyme doctor" , "Encourage; bring up" , "Promote, cherish" .)