Eco warrior finally laid to rest in lavish EU tomb (7)
I believe the answer is:
umberto
'eco' is the definition.
(Italian author Umberto Eco)
'warrior finally laid to rest in lavish eu tomb' is the wordplay.
I cannot quite understand how this works, but
'to' is found in the answer.
The remaining letters 'umber' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for umberto that I've seen before include "eco-friendly author?" , "Last king of Italy" .)