Apt rhyme for "fire" (4)
I believe the answer is:
pyre
'apt rhyme for fire' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pyre that I've seen before include "Ceremonial bonfire" , "Funereal fire" , "centrepiece of funerary rite" , "Heaped wood for burning a dead body" , "Heap of wood for burning a dead body" .)