Provide for permanently (5)
I believe the answer is:
endow
'provide for permanently' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for endow that I've seen before include "Establish (university post) by giving funds" , "Invest" , "Present with a source of income" , "Bequeath or give an income or property to" , "Provide funds" .)