Directly across from (8)
I believe the answer is:
opposite
'directly across from' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for opposite that I've seen before include "completely different?" , "Oppose it, being faced against" , "Contary of face-to-face" , "Facing - reverse" , "Contrary, antipode" .)