The most common and most likely answer to this crossword clue is the 3 plus 4 plus 2 letter word SET FIRE TO
I've seen this crossword clue in The Times
S
E
T
F
I
R
E
T
O
More clues leading to the result SET FIRE TO
- Light passion? That’s what row is about!
- Light scooter, if tested, keeps reversing
- Start blazing row, full of feminine emotion
- Start blazing row to curb enthusiasm
- Ignite dispute about female anger
- Light setback in vote: rift escalating
- Discharge during altercation is light
- Light altercation about sack
- One featured in shot of street light
- Kindle passion in argument
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 = set fire to.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.