Doubtfire or Dalloway (3)
I believe the answer is:
mrs
'doubtfire or dalloway' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for mrs that I've seen before include "Form of address for married woman" , "Married female" , "Wife" , "She's married" , "Married woman's title" .)