Answer: ADOWN

AnswerCrossword Clue
ADOWNDescending: Poet.
ADOWNBelow: Poet.
ADOWNOn the ground: Poet.
ADOWNAt a lower level: Poet.
ADOWNLow: Poet.
ADOWNBelow, to poets
ADOWN"... the long years": G.B.S.
ADOWNSystem of ...
adowndownward (from a higher to a lower place)