The most common and most likely answer to this crossword clue is the 6 letter word CARBOY
C
A
R
B
O
Y
More clues leading to the result CARBOY
- Lad underneath vehicle shows bottle
- Cold youth crossing a river shows great bottle
- Seat for one lad showing bottle
- Bottle child found under vehicle
- Lad following vehicle shows bottle
- Bottle supplied by garage apprentice?
- Lad on estate perhaps shows bottle
- Lad chasing vehicle gets container
- Perhaps sugar and nothing extremely healthy in bottle
- . Bottle from pub reserved for the Reverend
Buddy explains!

The straight part
We know that "acid carrier" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case acid carrier = carboy.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 CARBOY mean?
CARBOY noun- A large, rigid bottle, originally made of glass and mainly used for fermentation, and now commonly made of plastic and used to store liquids.
- To bottle in a carboy.