Entice everybody to the river (6)
I believe the answer is:
allure
'entice' is the definition.
(thesaurus)
'everybody to the river' is the wordplay.
'everybody' becomes 'all' (I've seen this before).
'to the river' becomes 'ure' (I have seen 'River of Wensleydale ' mean 'ure' so perhaps 'river' could also mean 'ure'**).
'all'+'ure'='ALLURE'
(Other definitions for allure that I've seen before include "Enchanting attractiveness" , "Laurel (anag)" , "Attractiveness, glamour" , "There's glamour" , "Powerful fascination" .)