Tree remains

I believe the answer is:

ash

I believe this is a double definition.

'tree' is the first definition.
(ash is a kind of tree)

'remains' is the second definition.
(remains of a fire)

(Other definitions for ash that I've seen before include "Tree with winged seeds" , "Residue after burning" , "Fraxinus" , "What's often left after something 1 Ac" , "Wooden" .)

I've seen this clue in The Daily Mail.

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