The most common and most likely answer to this crossword clue is the 8 letter word DOORWAYS
D
O
O
R
W
A
Y
S
Buddy explains!
The straight part
We know that "openings" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case openings = doorways.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 DOORWAYS mean?
DOORWAYS noun- The passage of a door; a door-shaped entrance into a house or a room.