It's hard not to interpret the "fighting my way back" chorus of the title track on Thin Lizzy's fifth album as the band's way of bouncing back from the uncommonly subdued Night Life. If that record was smooth and relaxed, Fighting is a tense, coiled, vicious rock & roll album, as hard as Vagabonds's toughest moments but more accomplished, the sound of a band truly coming into its own. There are two key forces at work. First, there's the integration of guitarists Scott Gorham and Brian Robertson, who get to unleash furious playing on every track here. It's hard not to thrill at their harmonizing twin-lead interplay, which is enough to excuse the rather pedestrian nature of their original tunes here (Robertson penned the boogie "Silver Dollar," Gorham the closer "Ballad of a Hard Man"). That's especially true because of the other development here: the full flourishing of Phil Lynott as a rock & roll poet. Whether he's writing hard-charging rockers like "Wild One,"