Inactive type of investor confronting new worker (8)
I believe the answer is:
stagnant
'inactive' is the definition.
(thesaurus)
'type of investor confronting new worker' is the wordplay.
'type of investor' becomes 'stag'.
'confronting' is a charade indicator (letters next to each other).
'new' becomes 'n'.
'worker' becomes 'ant' (worker is a type of ant).
'stag'+'n'+'ant'='STAGNANT'
(Other definitions for stagnant that I've seen before include "Motionless deer" , "Foul from inertia" , "Moribund" , "(Water) not flowing" , "making no progress" .)