The most common and most likely answer to this crossword clue is the 4 letter word ADIT
I've seen this crossword clue in The Times
A
D
I
T
More clues leading to the result ADIT
- Opening a block in Edinburgh
- Approach of mine having commercial appeal
- Passage of Islamic writing rejecting extreme members
- Passage from pithead, I think?
- Check uranium has been removed from passage
- Read iTunes “open access” passage
- Opening of a key appeal
- Passage from Mongolia, and Gobi Desert, ends
- It needs a key first for opening
- Entrance, using commercial with sex appeal
Buddy explains!
The straight part
We know that "Passage" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case passage = adit.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 ADIT mean?
ADIT noun- A horizontal or nearly horizontal passage from the surface into a mine, as contrasted with a shaft or vertical entry passage. An adit may be used for ventilation, haulage, drainage, or other purposes.