Mention a different name (8)
I believe the answer is:
nominate
'name' is the definition.
(I know that name can be written as nominate)
'mention a different' is the wordplay.
'different' is an anagram indicator.
'mention'+'a'='mentiona'
'mentiona' with letters rearranged gives 'NOMINATE'.
(Other definitions for nominate that I've seen before include "Pick as a candidate" , "give name" , "Propose for office" , "Designate" , "Put forward name for a mention" .)