Draw from wide river (6)
I believe the answer is:
derive
'draw' is the definition.
(I've seen this before)
'from wide river' is the wordplay.
'from' indicates a hidden word.
'DERIVE' is hidden in the letters of 'wide river'.
(Other definitions for derive that I've seen before include "Originate, come (from)" , "Infer; originate (from)" , "Draw" , "Get or trace from a source" , "Arise (from); deduce" .)