The most common and most likely answer to this crossword clue is the 7 letter word ENTRANT
I've seen this crossword clue in The Guardian
E
N
T
R
A
N
T
More clues leading to the result ENTRANT
- Competitor in from France managed to get into Tourist Trophy
- Newcomer in hospital department getting to shout at length
- Competitor taking part in event ran terribly
- Competitor in event ran terrifically
- Competitor in French race sprinted on the inside
- Competitor in event ran terribly
- Candidate‘s angry comments following fellow heading off
- New competitor in event ran terrifically
- Person taking part in hospital department harangue
- Competitor in event ran tiredly
Buddy explains!

The straight part
We know that "Novice/competitor" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case novice/competitor = entrant.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 ENTRANT mean?
ENTRANT noun- A participant who enters something, such as a contest.
- A newcomer.