The most common and most likely answer to this crossword clue is the 9 letter word CONDENSER
I've seen this crossword clue in The Times
C
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More clues leading to the result CONDENSER
Buddy explains!
The straight part
We know that "could it add to the charge?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case could it add to the charge? = condenser.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 CONDENSER mean?
CONDENSER noun- A device designed to condense a gas into a liquid, either as part of a still, steam engine, refrigerator or similar machine.
- A capacitor.
- A lens (or combination of lenses) designed to gather light and focus it onto a specimen or part of a mechanism.
- A dental instrument used to pack filling into a cavity in a tooth.