Succotash bean (4)
I believe the answer is:
lima
'succotash bean' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for lima that I've seen before include "South American capital" , "Mail it to Peruvian city" , "Mail to Peru'd capital" , "Kind of bean" , "Mail to Peru's capital" .)