Cryptic crossword clue
They make light cracks around slate 3,5

The most common and most likely answer to this crossword clue is the 3 plus 5 letter word GAS LAMPS

I've seen this crossword clue in The Guardian
G
A
S
L
A
M
P
S

Buddy explains!

The straight part
We know that "They make light/They make light" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case they make light/they make light = gas lamps.
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.

Crossword Answer definitions

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