The most common and most likely answer to this crossword clue is the 10 letter word DISPOSABLE
D
I
S
P
O
S
A
B
L
E
More clues leading to the result DISPOSABLE
Buddy explains!

The straight part
We know that "Liquid/to be thrown away after use" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case liquid/to be thrown away after use = disposable.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 DISPOSABLE mean?
DISPOSABLE noun- Any object that is designed to be disposed of rather than refilled or repaired.
- That can be disposed of.
- That is designed to be discarded rather than reused, refilled or repaired.
- Available to be used.