Facing; enemy (8)
I believe the answer is:
opposing
I believe this clue is a double definition.
'facing' is the first definition.
(opposing is a kind of facing)
'enemy' is the second definition.
(thesaurus)
(Other definitions for opposing that I've seen before include "Going against" , "Contending" , "modelling after work" , "trying to end a sea of troubles by it?" , "Disapproving" .)