A dark brownish red firework (6)

I believe the answer is:

maroon

I believe this clue is a double definition.

'a dark brownish red' is the first definition.
(I've seen this before)

'firework' is the second definition.
(maroon is a kind of firework)

(Other definitions for maroon that I've seen before include "Dark crimson" , "Purplish colour" , "Leave stranded with little hope of rescue" , "Slaves' descendant" , "Brownish crimson" .)

I've seen this clue in The Telegraph.

Want a hint initially instead of a full solution? Install my app