The most common and most likely answer to this crossword clue is the 8 letter word DEXTROSE
I've seen this crossword clue in The Times
D
E
X
T
R
O
S
E
More clues leading to the result DEXTROSE
- Natural sugar almost redundant in potion
- Type of sugar daughter passed on to recycle store
- Something sweet, additive mostly included in medicine?
- Former wife in diet ends increased sugar
- … flower given to detective novelist, used to a certain extent as sweetener
- A missing supplement found in measure of sugar
- Measure, including most of additional sugar
Buddy explains!

The straight part
We know that "Natural sugar" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case natural sugar = dextrose.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 DEXTROSE mean?
DEXTROSE noun- The naturally-occurring dextrorotatory form of glucose monosaccharide molecule.