The most common and most likely answer to this crossword clue is the 10 letter word APPRENTICE
I've seen this crossword clue in The Guardian
A
P
P
R
E
N
T
I
C
E
More clues leading to the result APPRENTICE
- First part of appeal by Romeo to seduce novice
- Student, 21, must first get application right
- Prince with a pet that’s wild, one in need of training
- One bound to learn his craft
- Program rent freeze for learner
- Student starts on art project, picking roses to draw
- A positive promotion to attract and recruit
- Badly create PIN using first prime for trainee
Buddy explains!

The straight part
We know that "novice" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case novice = apprentice.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 APPRENTICE mean?
APPRENTICE noun- A trainee, especially in a skilled trade.
- One who is bound by indentures or by legal agreement to serve a tradesperson, or other person, for a certain time, with a view to learn the art, or trade, in which his master is bound to instruct him.
- One not well versed in a subject; a tyro or newbie.
- To put under the care and supervision of a master, for the purpose of instruction in a trade or business.
- To be an apprentice to.