The most common and most likely answer to this crossword clue is the 7 letter word SINUSES
I've seen this crossword clue in Independent
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More clues leading to the result SINUSES
- Evil exercises? They can give you a headache
- Offence exploits openings in person?
- Busy, on a boat, in channels that might get congested
- Wrong milk leads to small cavities
- Eighth of dentists busy with small cavities
- Maybe gluttony treats cavities
- Channels being employed on board
- Passages transgress on forms of employment
- Vice exploits parts of the body
- Employment in wicked activities? Such may give one a headache
Buddy explains!

The straight part
We know that "openings in person?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case openings in person? = sinuses.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 SINUSES mean?
SINUSES noun- A pouch or cavity in any organ or tissue, especially the paranasal sinus.
- A channel for transmitting venous blood.
- A notch or depression between two lobes or teeth in the margin of an organ.
- An abnormal cavity or passage such as a fistula, caused by the destruction of tissue.
- A bay of the sea; a recess in the shore.