Dug up something deposited in spring in grave, dead? (11)

I believe the answer is:
disinterred
'dug up' is the definition.
(disinterring is a kind of digging up)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for disinterred that I've seen before include "Dug up (from grave)" , "Exhumed" .)
I've seen this clue in The Times and The Sunday Times.
Want a hint initially instead of a full solution?
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