Answer:

digdeep

AnswerCrossword Clue
DIGDEEPDo some serious soul-searching
DIGDEEPResearch thoroughly
DIGDEEPTry one's utmost
DIGDEEPLook for dirt, literal or otherwise
DIGDEEPPrepare to pay dearly
DIGDEEPDelve
DIGDEEPFind inner strength
DIGDEEPPush oneself to the max