Answer: redug

AnswerCrossword Clue
REDUG

Excavated anew

REDUG

Excavated again

REDUG

Made a new hole

REDUG
Excavated more
REDUG
Fixed, as a foxhole
REDUGSpaded again
REDUGSpaded anew
REDUGMade a new ditch
REDUGMade, as a new trench
REDUGOpened a grave, e.g.
REDUGMade deeper, as a foxhole