Last word to daughter is correct (5)
I believe the answer is:
amend
'is correct' is the definition.
(I've seen this before)
'last word to daughter' is the wordplay.
'last word' becomes 'amen' (last word in a prayer).
'to daughter' becomes 'd' (genealogical abbreviation).
'amen'+'d'='AMEND'
(Other definitions for amend that I've seen before include "Put right" , "Revise" , "Make small changes to" , "Corrct error, make a minor aleration" , "Change to improve" .)