Used a shovel (3)
I believe the answer is:
dug
'used a shovel' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for dug that I've seen before include "Delved; teat" , "Breast of female mammal" , "Used a spade" , "Excavated" , "Udder or teat" .)