Elbowroom

n.

1.

Room to extend the elbows on each side; ample room for motion or action; free scope. Then came a stretch of grass and a little more elbowroom. - W. G. Norris.

air space, ample scope, blank check, carte blanche, clearance, field, free course, free hand, free play, free scope, full scope, full swing, headroom, latitude, leeway, long rope, maneuvering space, margin, no holds barred, open space, play, range, room, room to spare, rope, scope, sea room, space, spare room, swing, tolerance, way, wide berth