Save other half (7)
I believe the answer is:
husband
I believe this clue is a double definition.
'save' is the first definition.
(husbanding is a kind of saving)
'other half' is the second definition.
(thesaurus)
(Other definitions for husband that I've seen before include "Economically manage" , "Be thrifty with" , "M arried man" , "Woman's matrimonial partner" , "manage carefully" .)