Liverpool saw off a second-half fightback to earn a 2-1 win over Wolves that moved them seven points clear at the top of the Premier League.The Reds looked set for a straightforward afternoon when they carved out a two-goal, first-half lead thanks to a bunded Luis Diaz finish and Mohamed Salah's penalty - his 23rd goal of another extraordinary individual Premier League season.But Liverpool conceded to a wonderful Matheus Cunha strike midway through the second period and were faced with an onslaught that could so easily have ended in the visitors taking a deserved point..