Routine changes where life develops (2,5)
I believe the answer is:
in utero
'life develops' is the definition.
I can't tell whether this definition defines the answer.
'routine changes' is the wordplay.
'changes' indicates an anagram.
'routine' with letters rearranged gives 'IN UTERO'.
'where' is the link.
Can you help me to learn more?
(Other definitions for in utero that I've seen before include "Pre-natal position (Latin)" , "Within the womb - routine (anag)" , "Where the foetus is" , "being developed" , "Embryonic" .)