The most common and most likely answer to this crossword clue is the 5 letter word CADET
C
A
D
E
T
More clues leading to the result CADET
- Police student about reported money owed
- Trainee acted wildly
- Little brother wanted a cousin to show up
- Trainee accountant Edward recalled
- Police recruit in motorcade threatened
- One training pet to catch adder, ignoring the odds
- Cool guy is accommodating of French trainee
- Trainee returning section in unscripted activity
- Editor about to have whip round for trainee
- Trainee Indy setter about to get puzzle right … finally!
Buddy explains!

The straight part
We know that "Trainee" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case trainee = cadet.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 CADET mean?
CADET noun- A student at a military school who is training to be an officer.
- A younger or youngest son, who would not inherit as a firstborn son would.
- (in compounds, chiefly in genealogy) Junior. (See also the heraldic term cadency.)
- A young man who makes a business of ruining girls to put them in brothels.
- A young gentleman learning sheep farming at a station; also, any young man attached to a sheep station.