The most common and most likely answer to this crossword clue is the 7 letter word CISTERN
I've seen this crossword clue in The Guardian
C
I
S
T
E
R
N
More clues leading to the result CISTERN
- Storage tank, cold one, near back of boat
- Part of toilet cold on one’s rear
- Whence water’s drawn back, south of Sark etc
- British islands behind part of ship and tank
- Underground facility is, for some Swiss, integral to nuclear research centre
- Monk spies retreating tank
- Research facility in Switzerland retains first reservoir
- Tank — it’s newly installed in European laboratory
- Revolutionary in charge with tough-looking tank
- Clip oddly put on rear tank
Buddy explains!
The straight part
We know that "Part of toilet" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case part of toilet = cistern.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 CISTERN mean?
CISTERN noun- A reservoir or tank for holding water, especially for catching and holding rainwater for later use.
- In a flush toilet, the container in which the water used for flushing is held; a toilet tank.
- A cisterna.
- The vessel surrounding the condenser in a steam engine.