The most common and most likely answer to this crossword clue is the 3 plus 4 letter word GAS LAMP
I've seen this crossword clue in The Daily Telegraph
G
A
S
L
A
M
P
More clues leading to the result GAS LAMP
- Light source good with volatile plasma
- Source of light a big hit in space
- Light from space enveloping second city on mountain
- Something burning, opening blast rents asunder
- Attack in space seen in old-fashioned light
- Light rabbit punch
- In space, hammer lighter
- Severely censure during break for out-of-date street light
- One shed light on strike during opening
- A sort of light slam into a gap
Buddy explains!
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.