Surrogate bore my fertilised egg (6)
I believe the answer is:
embryo
'fertilised egg' is the definition.
(I've seen this before)
'surrogate bore my' is the wordplay.
'bore my' can be anagrammed to 'EMBRYO'.
However, I'm not clear how this is indicated.
Can you help me to learn more?
(Other definitions for embryo that I've seen before include "Rudimentary state" , "Primitive state" , "Animal or plant in its earliest stages" , "This could be the beginning" , "Animal in early stage, before birth" .)