The most common and most likely answer to this crossword clue is the 8 letter word FURLOUGH
I've seen this crossword clue in The Daily Telegraph
F
U
R
L
O
U
G
H
More clues leading to the result FURLOUGH
- Leave hard-water deposit beside provincial lake
- Leave coat by lake
- Leave hard-water deposit on Irish lake
- Leave coat down that’s picked up
- Leave coat by Irish lake
- Leave last from chateau encircled by French lake
- Reportedly depressed — put on coat and leave
- Leave of absence covering stars but missing start of performance
- Leave evergreen tree down by the sound
- Leave deposit on lake in Emerald Isle
Buddy explains!

The straight part
We know that "R" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case r = furlough.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 FURLOUGH mean?
FURLOUGH noun- A leave of absence or vacation.
- The documents authorizing such leave.
- A period of unpaid time off, used by an employer to reduce costs.
- To grant a furlough to (someone).
- To have (an employee) not work in order to reduce costs; to send (someone) on furlough.