Strip assets from princesses in underwear (9)
I believe the answer is:
disinvest
'strip' is the definition.
(I know that strip can be written as disinvest)
'assets from princesses in underwear' is the wordplay.
'assets from princesses' becomes 'dis' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'underwear' becomes 'vest'.
'dis'+'in'+'vest'='DISINVEST'
Can you help me to learn more?
(Other definitions for disinvest that I've seen before include "Remove money" , "Dispose of shares" .)