Born in Nine Elms (3)
I believe the answer is:
nee
'born' is the definition.
('nee' is 'born' in French)
'in nine elms' is the wordplay.
'in' says the answer is hidden in the clue.
'NEE' can be found hidden inside 'nine elms'.
(Other definitions for nee that I've seen before include "Prefix indicating maiden name of married woman" , "Adjective used to give woman's maiden name" , "called before wedding?" , "Surnamed at birth" , "Prefix to married woman's maiden name" .)