Stabilise what's left (7)
I believe the answer is:
balance
I believe this clue is a double definition.
'stabilise' is the first definition.
(thesaurus)
'what's left' is the second definition.
(I've seen this in another clue)
(Other definitions for balance that I've seen before include "Equilibrium or steady position" , "Cab lane (anag)" , "Scale for weighing" , "Libra - amount in account" , "Sign" .)