Sounding taken from Hudson or Ouse (8)
I believe the answer is:
sonorous
'sounding' is the definition.
(thesaurus)
'taken from hudson or ouse' is the wordplay.
'taken from' says the answer is hidden in the clue.
'SONOROUS' can be found hidden inside 'hudson or ouse'.
(Other definitions for sonorous that I've seen before include "(Of a sound) deep, full" , "Rich" , "Deep and full-sounding" , "Loud and deep in timbre" , "Producing sound" .)