Discover menu near these sandwiches (7)
I believe the answer is:
'discover' is the definition.
(to unearth is to discover or find)
'menu near these sandwiches' is the wordplay.
'sandwiches' says the answer is hidden in the clue (the answer is sandwiched in by the clue).
'UNEARTH' is hidden within 'menu near these'.
(Other definitions for unearth that I've seen before include "Cut a certain wire" , "Dig up or find for haunter" , "Find by digging" , "Dig up for a hunter" , "Disconnect terminal" .)