A person who speaks out on behalf of someone else or for a group they are not a part of is a(n)

1)  an abnormal, convex curvature of the spine, with a resultant bulge at the upper back

2)  a posture assumed by some female mammals during mating, in which the back arches downward

3)  to put out of joint; dislocate

4)  a partial dislocation, as of a joint; sprain

5)  a cord or band of dense, tough, inelastic, white, fibrous tissue, serving to connect a muscle with a bone or part; sinew

6)  a band of tissue, usually white and fibrous, serving to connect bones, hold organs in place

7)  a pouch, sac, or vesicle, especially a sac containing synovia, to facilitate motion, as between a tendon and a bone

8)  normal investment of bone, consisting of a dense, fibrous outer layer, to which muscles attach, and a more delicate, inner layer capable of forming bone

9)  meiosis, especially the first meiotic cell division in which the chromosome number is reduced by half

10)  an instrument for measuring solid angles, as of crystals

11)  to make a crackling sound; crackle

12)  epiphysial cartilage

13)  the marrow cavity in the shaft of a long bone

Explanation: