Question

one who speaks one behalf of others .

Answer 1

One who speaks one behalf of others is opposition

Answer 2

.Answer

A person who speaks on your behalf in this way is constantly called an" advocate"/ middleman/ adjudicator.

Explanation

advocate- a person( as a counsel) who works and argues in support of another's cause, especially in court.

OR a person or group that defends or maintains a cause or offer as a consumer advocate.

Adjudicator- an independent person or body officially appointed to settle a disagreement.

middleman- a person who attempts to make people involved in a conflict come to an agreement.

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