The most common and most likely answer to this crossword clue is the 6 letter word ROOKIE
I've seen this crossword clue in The Daily Telegraph
R
O
O
K
I
E
More clues leading to the result ROOKIE
- Man on board that is a new arrival?
- Chesspiece that is used by new recruit
- Eggs containing good one and one that’s raw
- Piece that is for a beginner
- Piece that is for someone new to the job
- Fine: yours truly cuts eggs for a starter
- Piece on board that is green
- Initially cornered man that is inexperienced fighter
- Man in the Corner? That’s me!
- Man on board that is green like me
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 = rookie.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 ROOKIE mean?
ROOKIE noun- An inexperienced recruit, especially in the police or armed forces.
- A novice.
- An athlete either new to the sport or to a team or in his first year of professional competition, especially said of baseball, basketball, hockey and American football players.
- A type of firecracker, used by farmers to scare rooks.
- Non-professional; amateur