The most common and most likely answer to this crossword clue is the 6 letter word INTROS
I
N
T
R
O
S
More clues leading to the result INTROS
- Lead-ins, those for instance not to Rossini opera scores
- Trendy up-and-coming type opening bars
- Terrible riots with any number interrupting pieces of music?
- Italian nationalist’s to revive old songs, originally beginning with these?
- Trendy type coming up with jazzy passages
- Appoint Rossini penning overtures
- Presentations inside backward class
- Musical passages in short reviewed after eliminating initial hiccups
Buddy explains!

The straight part
We know that "Lead-ins" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case lead-ins = intros.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 INTROS mean?
INTROS noun- An introduction.
- The opening sequence at beginning of a film, television program, etc.
- A small demo produced to promote one's demogroup or for a competition.