The most common and most likely answer to this crossword clue is the 10 letter word PYROMANIAC
I've seen this crossword clue in Independent
P
Y
R
O
M
A
N
I
A
C
More clues leading to the result PYROMANIAC
- Fire fan of unknown international team arrested by policeman
- Copper arresting unknown country fireman?
- Crazy, like Nero – first clue, maybe, …
- Setter causing offence?
- He likes a light macaroni cooked after pastry is scooped out
- Newish EU member’s half-back containing another — man of the match?
- One who is afire with a burning desire
Buddy explains!
The straight part
We know that "fireman" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fireman = pyromaniac.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.
What does PYROMANIAC mean?
PYROMANIAC noun- A person suffering from pyromania