The most common and most likely answer to this crossword clue is the 2 plus 5 letter word IN UTERO
I've seen this crossword clue in Financial Times
I
N
U
T
E
R
O
More clues leading to the result IN UTERO
- One note penned by emperor not yet delivered
- Where tiny person is guarded by minute Rottweiler
- Awaiting delivery of hysterical routine
- Undelivered sample of store tunics brought back
- Embryonic design of iron enthrals university type extremely
- Routine changes where life develops
- Minute rodents biting before birth
- That is to cover head or back while carried by a woman
- Neither first nor last of little eggs developing naturally
- Routine operation 4 17
Buddy explains!

The straight part
We know that "while carried by a woman" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case while carried by a woman = in utero.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.