Answer: depute

AnswerCrossword Clue
DEPUTEAppoint as a posse member, say
DEPUTEAuthorize
DEPUTEDelegate
DEPUTEDelegate.
DEPUTEAppoint as one's agent.
DEPUTEDelegate authority
DEPUTESend with authority
DEPUTEAppoint as a substitute
DEPUTEAssign authority
deputeto appoint as one's substitute, representative, or agent
deputeto assign (authority, a function, etc.) to a deputy
deputeto delegate (to appoint as one's representative)