Roth plan, for instance (3)
I believe the answer is:
ira
'roth plan for instance' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ira that I've seen before include "nationalists" , "Illegal organisation, initially" , "Illegal organisation, in short" , "terrorists" , "Songwriter George's elder brother" .)