The most common and most likely answer to this crossword clue is the 8 letter word ELECTRON
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More clues leading to the result ELECTRON
- Vote in referendum primarily about something negative?
- Vote for Republican, one endlessly a tiny bit negative
- Negative piece with slogan Reaganites used?
- What Americans did to get Reagan in charge
- In small part what Americans did in 1980
- Vote in right, working for part of 12
- One taking charge in ‘Vote for Reagan’?
- … a little bit like the US did in 1980?
- Pick on boy — one’s very tiny
- Sadly, Isaac wasn't involved in representing accelerations of a particle
Buddy explains!

The straight part
We know that "particle" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case particle = electron.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 ELECTRON mean?
ELECTRON noun- The subatomic particle having a negative charge and orbiting the nucleus; the flow of electrons in a conductor constitutes electricity.
- Alloys of magnesium and other metals, like aluminum or zinc, that were manufactured by the German company Chemische Fabrik Griesheim-Elektron.