Drivel at end of conference is spin (6)
I believe the answer is:
rotate
'is spin' is the definition.
(thesaurus)
'drivel at end of conference' is the wordplay.
'drivel' becomes 'rot' (rot is a kind of drivel).
'end of' suggests the final letters.
The last letter of 'conference' is 'e'.
'rot'+'at'+'e'='ROTATE'
(Other definitions for rotate that I've seen before include "Turn round" , "Go round and round" , "Spin round" , "Make to spin around" , "Move round centre" .)