The most common and most likely answer to this crossword clue is the 7 letter word LIQUIDS
I've seen this crossword clue in The Daily Telegraph
L
I
Q
U
I
D
S
More clues leading to the result LIQUIDS
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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 LIQUIDS mean?
LIQUIDS noun- A substance that is flowing, and keeping no shape, such as water; a substance of which the molecules, while not tending to separate from one another like those of a gas, readily change their relative position, and which therefore retains no definite shape, except that determined by the containing receptacle; an inelastic fluid.
- A class of consonant sounds that includes l and r.