The most common and most likely answer to this crossword clue is the 5 letter word DEBUT
I've seen this crossword clue in The Times
D
E
B
U
T
More clues leading to the result DEBUT
- Start university getting into arrears
- Something outstanding about university’s appearance initially
- Maiden forced to eat up
- Entrance with pipes passing back
- Beginning of damage engulfing university
- Beginning university beset by unfortunate financial situation
- TV drama’s earliest part reviewed as such?
- … start to remove objection, perhaps
- Different exits both opening, all the same for entrance
- Start due, no middle though
Buddy explains!

The straight part
We know that "Entrance" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case entrance = debut.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 DEBUT mean?
DEBUT noun- A performer's first performance to the public, in sport, the arts or some other area.
- The first public presentation of a theatrical play, motion picture, opera, musical composition, dance, or other performing arts piece.
- The first appearance of a debutante in society.
- To formally introduce, as to the public
- To make one's initial formal appearance