Midwives' curious ritual is, in reality, very ''PC''! (7)
I believe the answer is:
virtual
'reality very 'pc'' is the definition.
I can't tell whether this definition defines the answer.
'midwives curious ritual is in' is the wordplay.
'midwives' becomes 'v' (I can't explain this - if you can you should give a lot more credence to this answer).
'curious' indicates anagramming the letters.
'is in' indicates putting letters inside.
'ritual' anagrammed gives 'irtual'.
'v' placed within 'irtual' is 'VIRTUAL'.
Can you help me to learn more?
(Other definitions for virtual that I've seen before include "In effect, but not in fact" , "The reality that isn't" , "Not physically existing" , "to all intents and purposes" , "Existing in essence" .)