Last to be following the majority (9)
I believe the answer is:
aftermost
'last' is the definition.
(thesaurus)
'following the majority' is the wordplay.
'following' becomes 'after' (I've seen this before).
'the majority' becomes 'most' (I've seen this before).
'after'+'most'='AFTERMOST'
'to be' is the link.
(Other definitions for aftermost that I've seen before include "Right at the back" , "Towards end of Jumbo" .)