Answer: adown

AnswerCrossword Clue
ADOWN

Descending: Poet.

ADOWN

Below: Poet.

ADOWN

On the ground: Poet.

ADOWN
At a lower level: Poet.
ADOWN
Low: Poet.
ADOWNBelow, to poets
ADOWN"... the long years": G.B.S.
ADOWNSystem of ...