Fill the ward (6)
I believe the answer is:
charge
I believe this clue is a double definition.
'fill' is the first definition.
(I know that charge is a more specific form of the action impregnate)
'ward' is the second definition.
(both can mean a child in someone's care)
'the' acts as a link.
(Other definitions for charge that I've seen before include "Formally accuse (someone)" , "Legal accusation" , "responsibility" , "Keeping" , "Accuse; load, fill" .)