Woman reviewed diet with husband (5)
I believe the answer is:
edith
'woman' is the definition.
(woman's name)
'reviewed diet with husband' is the wordplay.
'reviewed' indicates anagramming the letters (letters reviewed or revised).
'with' is a charade indicator (letters next to each other).
'husband' becomes 'h'.
'diet' with letters rearranged gives 'edit'.
'edit'+'h'='EDITH'
(Other definitions for edith that I've seen before include "Evans, Sitwell or Piaf" , "and 19 Across: 'Little Sparrow'" , "Woman's name" , "Cavell, Piaf or Wharton" , "Dame ----- Evans (1888-1976), stage and screen actress" .)