Funeral fire (4)
I believe the answer is:
pyre
'funeral fire' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for pyre that I've seen before include "Pile of wood for burning a dead body" , "Funeral mound" , "Fire for burning corpse" , "Heap for cremating a corpse" , "Pile of wood for burning as at ancient funeral" .)