Like group’s property (6)
I believe the answer is:
assets
'property' is the definition.
(I've seen this in another clue)
'like group's' is the wordplay.
'like' becomes 'as'.
'group's' becomes 'set's' (both can mean a collection).
'as'+'sets'='ASSETS'
(Other definitions for assets that I've seen before include "Possessions of material value" , "Valuable property" , "One's goods and property" , "capital" , "Total value of possessions" .)