Urge torso to become insolvent (2,4)
I believe the answer is:
go bust
'insolvent' is the definition.
I know nothing about this answer so I can't tell whether this works.
'urge torso to become' is the wordplay.
'urge torso' becomes 'bust' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'to' says to put letters next to each other (I've seen this in other clues).
'become' becomes 'go' (eg to go rotten is to become rotten).
'bust' after 'go' is 'GO BUST'.
Can you help me to learn more?
(Other definitions for go bust that I've seen before include "Become bankrupt" , "so firm might collapse" , "Not get out of the red" .)