Unearth (8)
(Other definitions for discover that I've seen before include "Come upon" , "Be the first to have sight or knowledge of" , "Make a new finding" , "Detect, find" , "Find out about record surplus" .)
'unearth' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for disinter that I've seen before include "Dig up a dead body" , "Dig up, say a body" , "Exhume a body" , "Unearth" , "Bring up" .)
'unearth' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for dig up that I've seen before include "Uncover (something hidden)" , "Exhume" , "Unearth" , "Find" , "Excavate - discover" .)