The most common and most likely answer to this crossword clue is the 6 letter word YEARLY
I've seen this crossword clue in The Times
Y
E
A
R
L
Y
More clues leading to the result YEARLY
- End of tyranny in good time in each revolution?
- Wise, say, to include aristo in annual
- Nobleman investing in variable quantities on an annual basis
- Peer into 27 annual
- When winter comes, sooner than expected, after end of January
- Showing regularity unknown at the beginning
- Annual Yuletide vacation on Australian Railway
- Peer into yards on a regular basis
- Perennial is unknown beforehand
- Yen to get ahead of schedule producing annual publication
Buddy explains!

The straight part
We know that "in each revolution?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case in each revolution? = yearly.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 YEARLY mean?
YEARLY noun- Something that is published once a year.
- Happening once every year.
- Once a year.
- Every year.