The most common and most likely answer to this crossword clue is the 3 plus 3 letter word DRY ICE
D
R
Y
I
C
E
More clues leading to the result DRY ICE
- Line cutting cube that produces smoky effect
- Refrigerator in dirty kitchen periodically emptied
- I decry the making of gas for stage effect
- I decry broken freezer
- Gamble with taking lines, a product of being solid?
- I decry circulating coolant
- Spread glyceride, not in leg — it keeps things cool
- Cried out about yellow theatrical fog
Buddy explains!
The straight part
We know that "coolant" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case coolant = dry ice.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.