The most common and most likely answer to this crossword clue is the 13 letter word INEXPERIENCED
I've seen this crossword clue in The Daily Telegraph
I
N
E
X
P
E
R
I
E
N
C
E
D
More clues leading to the result INEXPERIENCED
- Mostly untrained, I stop protecting chief engineer new to the job
- Precede nine with XI in mix-up, being new to the job
- Popular finishing round on practice green
- Gina undressed and felt raw
- Green divorcee consumed by exotic recipe in end
- In need, I creep about, cross inside, lacking the wherewithal to cope?
- Largely unskilled, could be niece described primarily as this?
- Reporter’s local suffered, being naive
Buddy explains!

The straight part
We know that "raw" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case raw = inexperienced.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.
What does INEXPERIENCED mean?
INEXPERIENCED adjective- Not experienced; lacking knowledge or experience; green.
- Virginal or lacking in personal knowledge and experiences of sex.