Possible Clues:

• Stand and fall taking endless rum
• Result of taking drug (too much of it) - one appears to have three legs!
• Three-legged stand as for camera
• Shooting aid
• Pay heed
• Stand, taking journey leaving centre of Oxford
• Act up after accidental fall, getting support
• Where three feet don't make one yard to fall over and do up
• (Camera) stand
• Stand and fall with endless rum