Facing counter concealing it (8)
I believe the answer is:
opposite
'facing' is the definition.
(I've seen this before)
'counter concealing it' is the wordplay.
'counter' becomes 'oppose' (I've seen this before**).
'concealing' is an insertion indicator.
'oppose' enclosing 'it' is 'OPPOSITE'.
(Other definitions for opposite that I've seen before include "Directly across from" , "antipodean" , "Converse" , "Facing on the other side" , "reverse, in fact" .)