*Regardless (2,6,4)
I think it could be either:
no matter what
'regardless' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for come what may that I've seen before include "Regardless" , "Whatever happens" , "In spite of anything that might happen" , "No matter what happens" .)
'regardless' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for no matter what that I've seen before include "come hell or high water" , "Under any circumstances" , "Regardless" , "In any case" , "In any circumstance" .)