The most common and most likely answer to this crossword clue is the 6 plus 4 letter word SAFETY LAMP
I've seen this crossword clue in The Daily Telegraph
S
A
F
E
T
Y
L
A
M
P
More clues leading to the result SAFETY LAMP
- Playmates stupidly hiding fine lighter of mine?
- Dodgy playmates pocketing fine lighter of mine
- Carrying fine pasty meal prepared for miner’s companion
- Flats pay me in new arrangement as mine’s light
- Small flame at play; evacuated and put out by instrument used by miners
- Flames apt to get out of control? Colliery finally introduced ____!
- Light bothered playmates, including female
Buddy explains!
The straight part
We know that "Light" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case light = safety lamp.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.