By Sean Walsh FROM TOTTENHAM HOTSPUR STADIUM – Arsenal moved four points clear at the top of the Premier League with a nervy 3-2 win at north London rivals Tottenham. The Gunners raced into a three-goal lead before the break having weathered an early Spurs storm, but Ange Postecoglou’s men rallied in the second half and came bitterly close to claiming an unlikely point. Second-place Manchester City play later on Sunday and can reduce the gap on Arsenal back to one point with victory at Nottingham Forest, but it’s job done for Mikel Arteta’s side for now, clearing the hardest of their final hur…