The most common and most likely answer to this crossword clue is the 7 letter word LEAD-IN
I've seen this crossword clue in The Guardian
L
E
A
D
-
I
N
More clues leading to the result LEAD-IN
Buddy explains!
The straight part
We know that "Opening" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case opening = lead-in.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 LEAD-IN mean?
LEAD-IN noun- An introduction; something that leads into the beginning of something.
- A region of data at the beginning of a compact disc, holding the table of contents.
- A short phrase that begins the caption of a photograph.