Count ushered off (6)
I believe the answer is:
addled
'off' is the definition.
(I've seen this before)
'count ushered' is the wordplay.
'count' becomes 'add' (adding is a kind of counting).
'ushered' becomes 'led' (to usher someone is to lead them somewhere).
'add'+'led'='ADDLED'
(Other definitions for addled that I've seen before include "Befuddled" , "Perplexed -- rotten" , "spoiled" , "Scatterbrained like bad egg" , "Confused like infertile egg" .)