The most common and most likely answer to this crossword clue is the 5 letter word CHUTE
I've seen this crossword clue in The Times
C
H
U
T
E
More clues leading to the result CHUTE
- Water slide is very appealing when it’s hot inside
- Report of fire in passage with rubbish going through?
- Fire reported in water slide
- Rapid fire reported
- Clever fixing height of waterfall
- Shoot broadcast for a channel
- Pretty entertaining start to high jump
- Maybe slide into swimming pool in building protected by Church
Buddy explains!

The straight part
We know that "Water slide" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case water slide = chute.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 CHUTE mean?
CHUTE noun- A framework, trough or tube, upon or through which objects are made to slide from a higher to a lower level, or through which water passes to a wheel.
- A waterfall or rapid.
- The pen in which an animal is confined before being released in a rodeo.
- A parachute.
- To parachute.