Nicky Clark scored a hat-trick as Dunfermline moved to within one point of the Scottish Championship play-off places with a 3-0 win at bottom side Brechin.Clark opened the scoring after eight minutes and grabbed a second just a minute later.The first was a fine finish into the far corner of the goal and he doubled the Pars' advantage when he then curled in his second shortly after.Clark completed his hat-trick after 54 minutes when he ran on to a ball over the top of the home defence and finished low across the keeper.