climber

a vine or climbing plant that readily grows up a support or over other plants

someone seeking social prominence by obsequious behavior

someone who ascends on foot; "a solitary mounter of the staircase"

someone who climbs as a sport; especially someone who climbs mountains; "the lead climber looked strong still but his partner often slumped in his ropes"

an iron spike attached to the shoe to prevent slipping on ice when walking or climbing