Remains sort of blonde (3)
I believe the answer is:
ash
I believe this is a double definition.
'remains' is the first definition.
(remains of a fire)
'sort of blonde' is the second definition.
(ash blonde is a hair colour)
(Other definitions for ash that I've seen before include "Tree; fire residue" , "deposit" , "End of fire" , "Rowan tree is also called the mountain . . ." , "It comes from volcano" .)