Clean for me, ill explain you below my points.
Well there are any shots which you can tell clearyl he is cheating.
Maybe there are a few dogdy moments like in 6:29 but he sees the burst fire from the enemy.
Also i noticed on 7:53 - 7:57 how he knows the enemy is in this wall.
If you look in 7:36 theres a guy who killed him in their spawn so when he respawns he is trying to find him, which is really pure logic. After that he dies in the street and i saw the head of the guy in the wall. Not sure if he saw it himself but when he respawns in the spawn bulding he looks again in
the wall which makes sense again.
A moment in 8:32 and 10:00 shows clearly he is clean.
Well hope i provided some valid points and cuz i played on a high competitive level myself i see this guy knows the usual wallbangs and spots.
So i will say one more time i believe he is clean.
Would like to hear more opinions.