Exclude or omit (5,3)
I believe the answer is:
leave out
I believe this clue is a double definition.
'exclude' is the first definition.
(I know that exclude can be written as leave out)
'omit' is the second definition.
(I know that omit can be written as leave out)
(Other definitions for leave out that I've seen before include "Omit, do not include" , "Forget" , "Omit, overlook" , "Drop" , "not put away" .)