To the little people in question, she's a mother (4)
I believe the answer is:
emma
'to the little people in question' is the definition.
I can't tell whether this definition defines the answer.
'she's a mother' is the wordplay.
'she' becomes 'em' ().
'a mother' becomes 'ma' (Ma is another word for mother or mum).
'em'+'ma'='EMMA'
Can you help me to learn more?
(Other definitions for emma that I've seen before include "Jane Austen novel and Nelson's lover" , "Flaubert's heroine" , "Female" , "Eponymous heroine" , "Jane Austen work - Ms Bunton, former Baby Spice" .)