Lead on everyone by river (6)
I believe the answer is:
allure
'lead on' is the definition.
(thesaurus)
'everyone by river' is the wordplay.
'everyone' becomes 'all' (all people).
'by' is a charade indicator (letters next to each other).
'river' becomes 'ure' (river in Yorkshire).
'all'+'ure'='ALLURE'
(Other definitions for allure that I've seen before include "Laurel (anag)" , "What siren may do" , "Enchanting attractiveness" , "Powerful attraction" , "Entice or attract - sounds like a decoy" .)