Dispose of money in area hoarded by select group (9)
I believe the answer is:
eliminate
'dispose of' is the definition.
(thesaurus)
'money in area hoarded by select group' is the wordplay.
'money' becomes 'm' (abbreviation used in economics).
'area' becomes 'a' (maths abbreviation).
'hoarded by' means one lot of letters goes inside another (hoard can mean to hold onto).
'select group' becomes 'elite' (I've seen this before).
'm'+'in'+'a'='mina'
'mina' put into 'elite' is 'ELIMINATE'.
(Other definitions for eliminate that I've seen before include "Do away with, remove" , "Discard - exclude" , "Wipe out" , "Annihilate" , "Remove from contention" .)