Crossword Genius

Absolutely representing impact of terroir? (4,2,3,6)

Ross

I believe the answer is:

down to the ground

'absolutely' is the definition.
(I've seen this before)

I don't understand how the rest of the clue works.

(Other definitions for down to the ground that I've seen before include "Completely" , "where a lift may be going" , "How paras come" , "Where rain goes" , "Entirely" .)

I've seen this clue in The Independent.
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