This climbs the obvious left-slanting crack system on the left edge of the shady north face of Stirrup Rock. Work your way down into the "pit" at the base and climb off a boulder into the crack. Jugular Vein (5.8) climbs this route and then cuts right to join a crack/dike system. Rap off bolts to climbers left to descend.
This is another route that receives mention in the Winger's 60 Classics/Trad Guide to Joshua Tree.
Protection
Light rack. Optional 4" piece protects the flare halfway up.
So unmemorable that I am at a loss of words to describe it. Might be a little awkward for the fledgling 5.6 leader - move onto something else before trying this as a start to your climbing career.
If you like bird shit be sure to do Jugular Vein afterwards, there's a whole ledge of it to climb around. Or, if you're like me, put your hand in on the way up.