The most common and most likely answer to this crossword clue is the 5 plus 7 letter word WHEEL BEARING
I've seen this crossword clue in The Guardian
W
H
E
E
L
B
E
A
R
I
N
G
Buddy explains!
The straight part
We know that "that facilitates revolution" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case that facilitates revolution = wheel bearing.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.