Darling good manners? (5)
I believe the answer is:
grace
I believe this is a double definition.
'darling' is the first definition.
(Grace Darling saved lives after an 1838 shipwreck)
'good manners?' is the second definition.
(thesaurus)
(Other definitions for grace that I've seen before include "Elegance - prayer before meal" , "W.G. ---, cricketer" , "Prayer of thanks before/after a meal" , "Charming quality" , "For example, Euphrosyne" .)