Implore one to go away (6)
I believe the answer is:
begone
'go away' is the definition.
(I've seen this before)
'implore one' is the wordplay.
'implore' becomes 'beg' ('beg' can be a synonym of 'implore').
'beg'+'one'='BEGONE'
'to' is the link.
(Other definitions for begone that I've seen before include "get lost" , "Get away" , "make himself scarce" , "Archaic injunction to go away" , "Take a hike" .)